Complete List of Senate Polls Used
Below we have a list of all the polls used on this site. Only nonpartisan polls are used; polls taken by pollsters paid for by one of the parties are intentionally omitted. The dates given are when the poll started and ended. The polls for each state are sorted in descending order of their midpoints. Incumbents are denoted by an asterisk.
The data are also available as plain text and in .csv format for use with Excel. In the latter, the first column is the day number of the midpoint (Jan. 1, 2008 = day 1.0) and the second is the poll length in days.
The site also has a page describing the Senate races, including brief descriptions of the situation, the names and photos of the candidates, and links to their campaign pages, Wikipedia entries, and state parties.
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Alabama | William Barnes | 39% | Richard Shelby* | 47% | Aug 27 | Aug 28 | PPP | ||
| Alabama | William Barnes | 28% | Richard Shelby* | 60% | Aug 19 | Aug 19 | Rasmussen | ||
| Alabama | William Barnes | 29% | Richard Shelby* | 59% | Jul 22 | Jul 22 | Rasmussen | ||
| Alabama | William Barnes | 31% | Richard Shelby* | 58% | Jun 03 | Jun 03 | Rasmussen | ||
| Alabama | William Barnes | 31% | Richard Shelby* | 58% | May 25 | May 25 | Rasmussen | ||
| Alabama | William Barnes | 32% | Richard Shelby* | 59% | Mar 29 | Mar 29 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Arizona | Rodney Glassman | 31% | John McCain* | 53% | Aug 25 | Aug 25 | Rasmussen | ||
| Arizona | Rodney Glassman | 34% | John McCain* | 53% | Jul 29 | Jul 29 | Rasmussen | ||
| Arizona | Rodney Glassman | 28% | John McCain* | 57% | May 17 | May 17 | Rasmussen | ||
| Arizona | Rodney Glassman | 24% | John McCain* | 46% | Apr 12 | Apr 25 | Rocky Mtn Poll | ||
| Arizona | Rodney Glassman | 33% | John McCain* | 49% | Apr 23 | Apr 25 | PPP | ||
| Arizona | Rodney Glassman | 32% | John McCain* | 54% | Apr 13 | Apr 13 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Arkansas | Blanche Lincoln* | 27% | John Boozman | 65% | Aug 18 | Aug 18 | Rasmussen | ||
| Arkansas | Blanche Lincoln* | 35% | John Boozman | 60% | Jul 20 | Jul 20 | Rasmussen | ||
| Arkansas | Blanche Lincoln* | 35% | John Boozman | 54% | Jul 16 | Jul 18 | IPSOS | ||
| Arkansas | Blanche Lincoln* | 32% | John Boozman | 61% | Jun 15 | Jun 15 | Rasmussen | ||
| Arkansas | Blanche Lincoln* | 28% | John Boozman | 66% | May 19 | May 19 | Rasmussen | ||
| Arkansas | Blanche Lincoln* | 35% | John Boozman | 52% | May 03 | May 05 | Mason-Dixon | ||
| Arkansas | Blanche Lincoln* | 29% | John Boozman | 57% | Apr 26 | Apr 26 | Rasmussen | ||
| Arkansas | Blanche Lincoln* | 36% | John Boozman | 51% | Mar 30 | Mar 30 | Rasmussen | ||
| Arkansas | Blanche Lincoln* | 39% | John Boozman | 48% | Mar 01 | Mar 01 | Rasmussen | ||
| Arkansas | Blanche Lincoln* | 35% | John Boozman | 54% | Feb 01 | Feb 01 | Rasmussen | ||
| Arkansas | Blanche Lincoln* | 33% | John Boozman | 56% | Jan 29 | Jan 31 | PPP | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| California | Barbara Boxer* | 49% | Carly Fiorina | 44% | Aug 24 | Aug 24 | Rasmussen | ||
| California | Barbara Boxer* | 42% | Carly Fiorina | 47% | Aug 09 | Aug 11 | SurveyUSA | ||
| California | Barbara Boxer* | 45% | Carly Fiorina | 40% | Aug 03 | Aug 03 | Rasmussen | ||
| California | Barbara Boxer* | 49% | Carly Fiorina | 40% | Jul 23 | Jul 25 | PPP | ||
| California | Barbara Boxer* | 39% | Carly Fiorina | 34% | Jul 06 | Jul 20 | Public Policy Inst. of | ||
| California | Barbara Boxer* | 49% | Carly Fiorina | 42% | Jul 12 | Jul 12 | Rasmussen | ||
| California | Barbara Boxer* | 45% | Carly Fiorina | 47% | Jul 08 | Jul 11 | SurveyUSA | ||
| California | Barbara Boxer* | 47% | Carly Fiorina | 44% | Jun 22 | Jul 05 | Field Poll | ||
| California | Barbara Boxer* | 45% | Carly Fiorina | 41% | Jun 25 | Jun 27 | IPSOS | ||
| California | Barbara Boxer* | 48% | Carly Fiorina | 43% | Jun 09 | Jun 09 | Rasmussen | ||
| California | Barbara Boxer* | 44% | Carly Fiorina | 38% | May 19 | May 26 | Louisiana Times | ||
| California | Barbara Boxer* | 45% | Carly Fiorina | 42% | May 21 | May 23 | PPP | ||
| California | Barbara Boxer* | 48% | Carly Fiorina | 39% | May 09 | May 16 | Public Policy Inst. of | ||
| California | Barbara Boxer* | 45% | Carly Fiorina | 38% | May 12 | May 12 | Rasmussen | ||
| California | Barbara Boxer* | 42% | Carly Fiorina | 38% | Apr 12 | Apr 12 | Rasmussen | ||
| California | Barbara Boxer* | 44% | Carly Fiorina | 43% | Mar 09 | Mar 16 | Public Policy Inst. of | ||
| California | Barbara Boxer* | 45% | Carly Fiorina | 44% | Mar 09 | Mar 15 | Field Poll | ||
| California | Barbara Boxer* | 46% | Carly Fiorina | 40% | Mar 11 | Mar 11 | Rasmussen | ||
| California | Barbara Boxer* | 46% | Carly Fiorina | 42% | Feb 11 | Feb 11 | Rasmussen | ||
| California | Barbara Boxer* | 48% | Carly Fiorina | 40% | Jan 12 | Jan 19 | Public Policy Inst. of | ||
| California | Barbara Boxer* | 50% | Carly Fiorina | 35% | Jan 05 | Jan 17 | Field Poll | ||
| California | Barbara Boxer* | 46% | Carly Fiorina | 43% | Jan 14 | Jan 14 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Colorado | Michael Bennet* | 45% | Ken Buck | 49% | Aug 29 | Aug 29 | Rasmussen | ||
| Colorado | Michael Bennet* | 40% | Ken Buck | 49% | Aug 20 | Aug 22 | IPSOS | ||
| Colorado | Michael Bennet* | 41% | Ken Buck | 46% | Aug 11 | Aug 11 | Rasmussen | ||
| Colorado | Michael Bennet* | 46% | Ken Buck | 43% | Aug 07 | Aug 08 | PPP | ||
| Colorado | Michael Bennet* | 43% | Ken Buck | 43% | Jul 27 | Jul 29 | SurveyUSA | ||
| Colorado | Michael Bennet* | 42% | Ken Buck | 48% | Jul 26 | Jul 26 | Rasmussen | ||
| Colorado | Michael Bennet* | 39% | Ken Buck | 48% | Jul 08 | Jul 08 | Rasmussen | ||
| Colorado | Michael Bennet* | 43% | Ken Buck | 46% | Jun 15 | Jun 17 | SurveyUSA | ||
| Colorado | Michael Bennet* | 41% | Ken Buck | 46% | Jun 07 | Jun 07 | Rasmussen | ||
| Colorado | Michael Bennet* | 45% | Ken Buck | 39% | May 14 | May 16 | PPP | ||
| Colorado | Michael Bennet* | 41% | Ken Buck | 48% | May 03 | May 03 | Rasmussen | ||
| Colorado | Michael Bennet* | 40% | Ken Buck | 44% | Apr 05 | Apr 05 | Rasmussen | ||
| Colorado | Michael Bennet* | 46% | Ken Buck | 40% | Mar 05 | Mar 08 | PPP | ||
| Colorado | Michael Bennet* | 38% | Ken Buck | 44% | Mar 02 | Mar 02 | Rasmussen | ||
| Colorado | Michael Bennet* | 41% | Ken Buck | 45% | Feb 02 | Feb 02 | Rasmussen | ||
| Colorado | Michael Bennet* | 38% | Ken Buck | 43% | Jan 13 | Jan 13 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Connecticut | Richard Blumenthal | 47% | Linda McMahon | 40% | Aug 11 | Aug 11 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 50% | Linda McMahon | 40% | Jul 28 | Aug 02 | Quinnipiac U. | ||
| Connecticut | Richard Blumenthal | 53% | Linda McMahon | 40% | Jul 15 | Jul 15 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 54% | Linda McMahon | 37% | Jul 07 | Jul 13 | Quinnipiac U. | ||
| Connecticut | Richard Blumenthal | 55% | Linda McMahon | 35% | Jun 02 | Jun 08 | Quinnipiac U. | ||
| Connecticut | Richard Blumenthal | 56% | Linda McMahon | 33% | Jun 01 | Jun 01 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 56% | Linda McMahon | 31% | May 24 | May 25 | Quinnipiac U. | ||
| Connecticut | Richard Blumenthal | 48% | Linda McMahon | 45% | May 18 | May 18 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 52% | Linda McMahon | 39% | May 04 | May 04 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 55% | Linda McMahon | 35% | Apr 07 | Apr 07 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 61% | Linda McMahon | 28% | Mar 09 | Mar 15 | Quinnipiac U. | ||
| Connecticut | Richard Blumenthal | 60% | Linda McMahon | 31% | Mar 02 | Mar 02 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 56% | Linda McMahon | 36% | Feb 01 | Feb 01 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 64% | Linda McMahon | 23% | Jan 08 | Jan 12 | Quinnipiac U. | ||
| Connecticut | Richard Blumenthal | 47% | Linda McMahon | 35% | Jan 06 | Jan 11 | Polimetrix | ||
| Connecticut | Richard Blumenthal | 58% | Linda McMahon | 34% | Jan 06 | Jan 06 | Rasmussen | ||
| Connecticut | Richard Blumenthal | 60% | Linda McMahon | 28% | Jan 04 | Jan 05 | PPP | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Delaware | Chris Coons | 35% | Mike Castle | 48% | Aug 07 | Aug 08 | PPP | ||
| Delaware | Chris Coons | 37% | Mike Castle | 49% | Aug 05 | Aug 05 | Rasmussen | ||
| Delaware | Chris Coons | 36% | Mike Castle | 47% | Jul 14 | Jul 14 | Rasmussen | ||
| Delaware | Chris Coons | 32% | Mike Castle | 55% | Apr 29 | Apr 29 | Rasmussen | ||
| Delaware | Chris Coons | 32% | Mike Castle | 53% | Feb 22 | Feb 22 | Rasmussen | ||
| Delaware | Chris Coons | 27% | Mike Castle | 56% | Jan 25 | Jan 25 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Florida | Kendrick Meek | 21% | Marco Rubio | 40% | Charlie Crist | 30 | Aug 25 | Aug 25 | Rasmussen |
| Florida | Kendrick Meek | 17% | Marco Rubio | 40% | Charlie Crist | 32 | Aug 21 | Aug 22 | PPP |
| Florida | Kendrick Meek | 16% | Marco Rubio | 32% | Charlie Crist | 39% | Aug 11 | Aug 16 | Quinnipiac U. |
| Florida | Kendrick Meek | 18% | Marco Rubio | 38% | Charlie Crist | 33 | Aug 09 | Aug 11 | Mason-Dixon |
| Florida | Kendrick Meek | 21% | Marco Rubio | 38% | Charlie Crist | 33 | Aug 09 | Aug 09 | Rasmussen |
| Florida | Kendrick Meek | 19% | Marco Rubio | 33% | Charlie Crist | 38% | Aug 06 | Aug 06 | IPSOS |
| Florida | Kendrick Meek | 12% | Marco Rubio | 30% | Charlie Crist | 41% | Jul 24 | Jul 28 | New York Times |
| Florida | Kendrick Meek | 13% | Marco Rubio | 30% | Charlie Crist | 41% | Jul 24 | Jul 28 | U. of South Florida |
| Florida | Kendrick Meek | 13% | Marco Rubio | 33% | Charlie Crist | 39% | Jul 22 | Jul 27 | Quinnipiac U. |
| Florida | Kendrick Meek | 20% | Marco Rubio | 35% | Charlie Crist | 33 | Jul 21 | Jul 21 | Rasmussen |
| Florida | Kendrick Meek | 17% | Marco Rubio | 29% | Charlie Crist | 35% | Jul 16 | Jul 18 | PPP |
| Florida | Kendrick Meek | 17% | Marco Rubio | 28% | Charlie Crist | 35% | Jul 09 | Jul 11 | IPSOS |
| Florida | Kendrick Meek | 15% | Marco Rubio | 36% | Charlie Crist | 34 | Jul 06 | Jul 06 | Rasmussen |
| Florida | Kendrick Meek | 15 | Marco Rubio | 37 | Charlie Crist | 37 | Jun 07 | Jun 07 | Rasmussen |
| Florida | Kendrick Meek | 17% | Marco Rubio | 33% | Charlie Crist | 37% | Jun 01 | Jun 07 | Quinnipiac U. |
| Florida | Kendrick Meek | 15% | Marco Rubio | 27% | Charlie Crist | 30% | May 14 | May 18 | IPSOS |
| Florida | Kendrick Meek | 18% | Marco Rubio | 39% | Charlie Crist | 31 | May 16 | May 16 | Rasmussen |
| Florida | Kendrick Meek | 19% | Marco Rubio | 32% | Charlie Crist | 38% | May 03 | May 05 | Mason-Dixon |
| Florida | Kendrick Meek | 17% | Marco Rubio | 34% | Charlie Crist | 38% | May 03 | May 03 | Rasmussen |
| Florida | Kendrick Meek | 22% | Marco Rubio | 37% | Charlie Crist | 30 | Apr 21 | Apr 21 | Rasmussen |
| Florida | Kendrick Meek | 24% | Marco Rubio | 30% | Charlie Crist | 32% | Apr 08 | Apr 13 | Quinnipiac U. |
| Florida | Kendrick Meek | 25% | Marco Rubio | 42% | Charlie Crist | 22 | Mar 18 | Mar 18 | Rasmussen |
| Florida | Kendrick Meek | 25% | Marco Rubio | 34% | Charlie Crist | 27 | Mar 05 | Mar 08 | PPP |
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Georgia | Mike Thurmond | 35% | Johnny Isakson* | 47% | Aug 18 | Aug 18 | Insider Advantage | ||
| Georgia | Mike Thurmond | 41% | Johnny Isakson* | 55% | Aug 11 | Aug 11 | Rasmussen | ||
| Georgia | Mike Thurmond | 30% | Johnny Isakson* | 57% | May 20 | May 20 | Rasmussen | ||
| Georgia | Mike Thurmond | 35% | Johnny Isakson* | 51% | Apr 22 | Apr 22 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Idaho | Tom Sullivan | 27% | Mike Crapo* | 64% | Jul 15 | Jul 15 | Rasmussen | ||
| Idaho | Tom Sullivan | 22% | Mike Crapo* | 66% | May 11 | May 11 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Illinois | Alexi Giannoulias | 42% | Mark Kirk | 40% | Aug 23 | Aug 23 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 37% | Mark Kirk | 35% | Aug 14 | Aug 15 | PPP | ||
| Illinois | Alexi Giannoulias | 40% | Mark Kirk | 40% | Aug 09 | Aug 09 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 33% | Mark Kirk | 39% | Aug 04 | Aug 04 | We Ask America | ||
| Illinois | Alexi Giannoulias | 43% | Mark Kirk | 41% | Jul 26 | Jul 26 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 40% | Mark Kirk | 39% | Jul 07 | Jul 07 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 31% | Mark Kirk | 30% | Jun 12 | Jun 13 | PPP | ||
| Illinois | Alexi Giannoulias | 39% | Mark Kirk | 42% | Jun 07 | Jun 07 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 38% | Mark Kirk | 46% | Apr 28 | Apr 28 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 35% | Mark Kirk | 35% | Apr 24 | Apr 26 | PPP | ||
| Illinois | Alexi Giannoulias | 33% | Mark Kirk | 37% | Apr 01 | Apr 05 | PPP | ||
| Illinois | Alexi Giannoulias | 37% | Mark Kirk | 41% | Apr 05 | Apr 05 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 44% | Mark Kirk | 41% | Mar 08 | Mar 08 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 40% | Mark Kirk | 46% | Feb 03 | Feb 03 | Rasmussen | ||
| Illinois | Alexi Giannoulias | 42% | Mark Kirk | 34% | Jan 22 | Jan 25 | PPP | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Indiana | Brad Ellsworth | 29% | Dan Coats | 50% | Aug 04 | Aug 07 | Rasmussen | ||
| Indiana | Brad Ellsworth | 30% | Dan Coats | 51% | Jul 08 | Jul 08 | Rasmussen | ||
| Indiana | Brad Ellsworth | 33% | Dan Coats | 47% | Jun 02 | Jun 03 | Rasmussen | ||
| Indiana | Brad Ellsworth | 36% | Dan Coats | 51% | May 05 | May 06 | Rasmussen | ||
| Indiana | Brad Ellsworth | 31% | Dan Coats | 47% | Apr 22 | Apr 26 | SurveyUSA | ||
| Indiana | Brad Ellsworth | 33% | Dan Coats | 54% | Apr 13 | Apr 14 | Rasmussen | ||
| Indiana | Brad Ellsworth | 34% | Dan Coats | 49% | Mar 17 | Mar 18 | Rasmussen | ||
| Indiana | Brad Ellsworth | 35% | Dan Coats | 50% | Jul 31 | Aug 03 | Polling Company | ||
| Indiana | Brad Ellsworth | 32% | Dan Coats | 46% | Feb 16 | Feb 17 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Iowa | Roxanne Conlin | 35% | Chuck Grassley* | 55% | Aug 05 | Aug 05 | Rasmussen | ||
| Iowa | Roxanne Conlin | 37% | Chuck Grassley* | 54% | Jun 14 | Jun 14 | Rasmussen | ||
| Iowa | Roxanne Conlin | 31% | Chuck Grassley* | 57% | May 25 | May 27 | PPP | ||
| Iowa | Roxanne Conlin | 40% | Chuck Grassley* | 53% | Apr 29 | Apr 29 | Rasmussen | ||
| Iowa | Roxanne Conlin | 36% | Chuck Grassley* | 55% | Mar 17 | Mar 17 | Rasmussen | ||
| Iowa | Roxanne Conlin | 36% | Chuck Grassley* | 53% | Feb 22 | Feb 22 | Rasmussen | ||
| Iowa | Roxanne Conlin | 31% | Chuck Grassley* | 59% | Jan 26 | Jan 26 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Kansas | Lisa Johnston | 23% | Jerry Moran | 69% | Aug 12 | Aug 15 | SurveyUSA | ||
| Kansas | Lisa Johnston | 28% | Jerry Moran | 61% | Aug 04 | Aug 04 | Rasmussen | ||
| Kansas | Lisa Johnston | 23% | Jerry Moran | 59% | Jun 30 | Jun 30 | Rasmussen | ||
| Kansas | Lisa Johnston | 25% | Jerry Moran | 61% | May 11 | May 11 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Kentucky | Jack Conway | 42% | Rand Paul | 41% | Aug 16 | Aug 18 | Braun Research | ||
| Kentucky | Jack Conway | 40% | Rand Paul | 49% | Aug 17 | Aug 17 | Rasmussen | ||
| Kentucky | Jack Conway | 40% | Rand Paul | 45% | Aug 13 | Aug 15 | IPSOS | ||
| Kentucky | Jack Conway | 31% | Rand Paul | 41% | Aug 02 | Aug 04 | Braun Research | ||
| Kentucky | Jack Conway | 43% | Rand Paul | 51% | Jul 27 | Jul 29 | SurveyUSA | ||
| Kentucky | Jack Conway | 38% | Rand Paul | 41% | Jul 19 | Jul 21 | Braun Research | ||
| Kentucky | Jack Conway | 41% | Rand Paul | 49% | Jul 20 | Jul 20 | Rasmussen | ||
| Kentucky | Jack Conway | 43% | Rand Paul | 43% | Jun 28 | Jun 30 | PPP | ||
| Kentucky | Jack Conway | 42% | Rand Paul | 49% | Jun 28 | Jun 28 | Rasmussen | ||
| Kentucky | Jack Conway | 41% | Rand Paul | 49% | Jun 01 | Jun 01 | Rasmussen | ||
| Kentucky | Jack Conway | 45% | Rand Paul | 51% | May 27 | May 29 | SurveyUSA | ||
| Kentucky | Jack Conway | 34% | Rand Paul | 59% | May 19 | May 19 | Rasmussen | ||
| Kentucky | Jack Conway | 40% | Rand Paul | 41% | May 01 | May 02 | PPP | ||
| Kentucky | Jack Conway | 38% | Rand Paul | 47% | Apr 28 | Apr 28 | Rasmussen | ||
| Kentucky | Jack Conway | 36% | Rand Paul | 50% | Mar 31 | Mar 31 | Rasmussen | ||
| Kentucky | Jack Conway | 34% | Rand Paul | 49% | Mar 02 | Mar 02 | Rasmussen | ||
| Kentucky | Jack Conway | 39% | Rand Paul | 47% | Feb 02 | Feb 02 | Rasmussen | ||
| Kentucky | Jack Conway | 38% | Rand Paul | 46% | Jan 06 | Jan 06 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Louisiana | Charlie Melancon | 41% | David Vitter* | 51% | Aug 21 | Aug 22 | PPP | ||
| Louisiana | Charlie Melancon | 36% | David Vitter* | 48% | Aug 15 | Aug 16 | Clarus | ||
| Louisiana | Charlie Melancon | 32% | David Vitter* | 44% | Jul 17 | Jul 19 | PPP | ||
| Louisiana | Charlie Melancon | 35% | David Vitter* | 53% | Jun 24 | Jun 24 | Rasmussen | ||
| Louisiana | Charlie Melancon | 37% | David Vitter* | 46% | Jun 12 | Jun 13 | PPP | ||
| Louisiana | Charlie Melancon | 31% | David Vitter* | 49% | Apr 19 | Apr 23 | Opinion Research | ||
| Louisiana | Charlie Melancon | 36% | David Vitter* | 52% | Apr 07 | Apr 07 | Rasmussen | ||
| Louisiana | Charlie Melancon | 33% | David Vitter* | 57% | Mar 10 | Mar 10 | Rasmussen | ||
| Louisiana | Charlie Melancon | 33% | David Vitter* | 57% | Feb 10 | Feb 10 | Rasmussen | ||
| Louisiana | Charlie Melancon | 35% | David Vitter* | 53% | Jan 14 | Jan 14 | Rasmussen | ||
| Louisiana | Charlie Melancon | 32% | David Vitter* | 52% | Jan 06 | Jan 11 | Polimetrix | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Maryland | Barbara Mikulski* | 55% | Eric Wargotz | 39% | Aug 17 | Aug 17 | Rasmussen | ||
| Maryland | Barbara Mikulski* | 59% | Eric Wargotz | 27% | Jul 10 | Jul 12 | PPP | ||
| Maryland | Barbara Mikulski* | 58% | Eric Wargotz | 33% | Jul 08 | Jul 08 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Missouri | Robin Carnahan | 40% | Roy Blunt | 51% | Aug 23 | Aug 23 | Rasmussen | ||
| Missouri | Robin Carnahan | 48% | Roy Blunt | 49% | Aug 07 | Aug 22 | Missouri State U. | ||
| Missouri | Robin Carnahan | 38% | Roy Blunt | 45% | Aug 14 | Aug 15 | PPP | ||
| Missouri | Robin Carnahan | 43% | Roy Blunt | 50% | Aug 10 | Aug 10 | Rasmussen | ||
| Missouri | Robin Carnahan | 43% | Roy Blunt | 49% | Jul 27 | Jul 27 | Rasmussen | ||
| Missouri | Robin Carnahan | 42% | Roy Blunt | 48% | Jul 19 | Jul 21 | Mason-Dixon | ||
| Missouri | Robin Carnahan | 45% | Roy Blunt | 47% | Jul 13 | Jul 13 | Rasmussen | ||
| Missouri | Robin Carnahan | 43% | Roy Blunt | 48% | Jun 28 | Jun 28 | Rasmussen | ||
| Missouri | Robin Carnahan | 44% | Roy Blunt | 45% | Jun 02 | Jun 02 | Rasmussen | ||
| Missouri | Robin Carnahan | 42% | Roy Blunt | 50% | May 03 | May 03 | Rasmussen | ||
| Missouri | Robin Carnahan | 42% | Roy Blunt | 48% | Apr 06 | Apr 06 | Rasmussen | ||
| Missouri | Robin Carnahan | 41% | Roy Blunt | 45% | Mar 27 | Mar 28 | PPP | ||
| Missouri | Robin Carnahan | 41% | Roy Blunt | 47% | Mar 09 | Mar 09 | Rasmussen | ||
| Missouri | Robin Carnahan | 42% | Roy Blunt | 49% | Feb 10 | Feb 10 | Rasmussen | ||
| Missouri | Robin Carnahan | 43% | Roy Blunt | 49% | Jan 19 | Jan 19 | Rasmussen | ||
| Missouri | Robin Carnahan | 43% | Roy Blunt | 39% | Jan 06 | Jan 11 | Polimetrix | ||
| Missouri | Robin Carnahan | 45% | Roy Blunt | 44% | Jan 10 | Jan 11 | PPP | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Nevada | Harry Reid* | 45% | Sharron Angle | 44% | Aug 23 | Aug 25 | Mason-Dixon | ||
| Nevada | Harry Reid* | 47% | Sharron Angle | 47% | Aug 16 | Aug 16 | Rasmussen | ||
| Nevada | Harry Reid* | 46% | Sharron Angle | 44% | Aug 09 | Aug 11 | Mason-Dixon | ||
| Nevada | Harry Reid* | 48% | Sharron Angle | 44% | Jul 30 | Aug 01 | IPSOS | ||
| Nevada | Harry Reid* | 43% | Sharron Angle | 42% | Jul 26 | Jul 28 | Mason-Dixon | ||
| Nevada | Harry Reid* | 45% | Sharron Angle | 43% | Jul 27 | Jul 27 | Rasmussen | ||
| Nevada | Harry Reid* | 48% | Sharron Angle | 46% | Jul 16 | Jul 18 | PPP | ||
| Nevada | Harry Reid* | 44% | Sharron Angle | 37% | Jul 12 | Jul 14 | Mason-Dixon | ||
| Nevada | Harry Reid* | 43% | Sharron Angle | 46% | Jul 12 | Jul 12 | Rasmussen | ||
| Nevada | Harry Reid* | 41% | Sharron Angle | 48% | Jun 22 | Jun 22 | Rasmussen | ||
| Nevada | Harry Reid* | 39% | Sharron Angle | 50% | Jun 09 | Jun 09 | Rasmussen | ||
| Nevada | Harry Reid* | 41% | Sharron Angle | 44% | Jun 01 | Jun 03 | Mason-Dixon | ||
| Nevada | Harry Reid* | 42% | Sharron Angle | 39% | May 24 | May 26 | Mason-Dixon | ||
| Nevada | Harry Reid* | 40% | Sharron Angle | 48% | Apr 27 | Apr 27 | Rasmussen | ||
| Nevada | Harry Reid* | 40% | Sharron Angle | 51% | Mar 31 | Mar 31 | Rasmussen | ||
| Nevada | Harry Reid* | 38% | Sharron Angle | 46% | Mar 03 | Mar 03 | Rasmussen | ||
| Nevada | Harry Reid* | 42% | Sharron Angle | 44% | Feb 22 | Feb 24 | Mason-Dixon | ||
| Nevada | Harry Reid* | 40% | Sharron Angle | 44% | Feb 02 | Feb 02 | Rasmussen | ||
| Nevada | Harry Reid* | 40% | Sharron Angle | 44% | Jan 11 | Jan 11 | Rasmussen | ||
| Nevada | Harry Reid* | 40% | Sharron Angle | 45% | Jan 05 | Jan 07 | Mason-Dixon | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| New Hampshire | Paul Hodes | 38% | Kelly Ayotte | 51% | Aug 05 | Aug 05 | Rasmussen | ||
| New Hampshire | Paul Hodes | 37% | Kelly Ayotte | 45% | Jul 19 | Jul 27 | U. of New Hampshire | ||
| New Hampshire | Paul Hodes | 42% | Kelly Ayotte | 45% | Jul 23 | Jul 25 | PPP | ||
| New Hampshire | Paul Hodes | 37% | Kelly Ayotte | 49% | Jul 12 | Jul 12 | Rasmussen | ||
| New Hampshire | Paul Hodes | 38% | Kelly Ayotte | 50% | May 11 | May 11 | Rasmussen | ||
| New Hampshire | Paul Hodes | 32% | Kelly Ayotte | 47% | Apr 18 | Apr 28 | U. of New Hampshire | ||
| New Hampshire | Paul Hodes | 40% | Kelly Ayotte | 47% | Apr 17 | Apr 18 | PPP | ||
| New Hampshire | Paul Hodes | 35% | Kelly Ayotte | 50% | Apr 07 | Apr 07 | Rasmussen | ||
| New Hampshire | Paul Hodes | 37% | Kelly Ayotte | 47% | Mar 08 | Mar 08 | Rasmussen | ||
| New Hampshire | Paul Hodes | 39% | Kelly Ayotte | 46% | Feb 10 | Feb 10 | Rasmussen | ||
| New Hampshire | Paul Hodes | 33% | Kelly Ayotte | 41% | Jan 27 | Feb 03 | U. of New Hampshire | ||
| New Hampshire | Paul Hodes | 40% | Kelly Ayotte | 49% | Jan 12 | Jan 12 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| North Carolina | Elaine Marshall | 38% | Richard Burr* | 43% | Aug 27 | Aug 29 | PPP | ||
| North Carolina | Elaine Marshall | 40% | Richard Burr* | 49% | Aug 03 | Aug 03 | Rasmussen | ||
| North Carolina | Elaine Marshall | 37% | Richard Burr* | 39% | Jul 27 | Jul 31 | PPP | ||
| North Carolina | Elaine Marshall | 36% | Richard Burr* | 46% | Jul 08 | Jul 11 | SurveyUSA | ||
| North Carolina | Elaine Marshall | 37% | Richard Burr* | 52% | Jul 06 | Jul 06 | Rasmussen | ||
| North Carolina | Elaine Marshall | 33% | Richard Burr* | 38% | Jun 26 | Jun 27 | PPP | ||
| North Carolina | Elaine Marshall | 40% | Richard Burr* | 50% | Jun 23 | Jun 24 | SurveyUSA | ||
| North Carolina | Elaine Marshall | 43% | Richard Burr* | 44% | Jun 23 | Jun 23 | Rasmussen | ||
| North Carolina | Elaine Marshall | 39% | Richard Burr* | 46% | Jun 04 | Jun 06 | PPP | ||
| North Carolina | Elaine Marshall | 36% | Richard Burr* | 50% | Jun 03 | Jun 03 | Rasmussen | ||
| North Carolina | Elaine Marshall | 42% | Richard Burr* | 43% | May 08 | May 10 | PPP | ||
| North Carolina | Elaine Marshall | 40% | Richard Burr* | 48% | May 05 | May 05 | Rasmussen | ||
| North Carolina | Elaine Marshall | 32% | Richard Burr* | 50% | Apr 19 | Apr 19 | Rasmussen | ||
| North Carolina | Elaine Marshall | 37% | Richard Burr* | 43% | Apr 08 | Apr 11 | PPP | ||
| North Carolina | Elaine Marshall | 35% | Richard Burr* | 51% | Mar 22 | Mar 22 | Rasmussen | ||
| North Carolina | Elaine Marshall | 36% | Richard Burr* | 41% | Mar 12 | Mar 15 | PPP | ||
| North Carolina | Elaine Marshall | 34% | Richard Burr* | 50% | Feb 23 | Feb 23 | Rasmussen | ||
| North Carolina | Elaine Marshall | 29% | Richard Burr* | 54% | Feb 15 | Feb 17 | Mason-Dixon | ||
| North Carolina | Elaine Marshall | 33% | Richard Burr* | 43% | Feb 12 | Feb 15 | PPP | ||
| North Carolina | Elaine Marshall | 37% | Richard Burr* | 47% | Jan 27 | Jan 27 | Rasmussen | ||
| North Carolina | Elaine Marshall | 37% | Richard Burr* | 44% | Jan 15 | Jan 18 | PPP | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| North Dakota | Tracy Potter | 25% | John Hoeven | 69% | Aug 10 | Aug 11 | Rasmussen | ||
| North Dakota | Tracy Potter | 22% | John Hoeven | 69% | Jul 21 | Jul 21 | Rasmussen | ||
| North Dakota | Tracy Potter | 19% | John Hoeven | 73% | Jun 15 | Jun 16 | Rasmussen | ||
| North Dakota | Tracy Potter | 23% | John Hoeven | 72% | May 18 | May 19 | Rasmussen | ||
| North Dakota | Tracy Potter | 24% | John Hoeven | 69% | Apr 20 | Apr 20 | Rasmussen | ||
| North Dakota | Tracy Potter | 25% | John Hoeven | 68% | Mar 23 | Mar 23 | Rasmussen | ||
| North Dakota | Tracy Potter | 17% | John Hoeven | 71% | Feb 09 | Feb 10 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Ohio | Lee Fisher | 39% | Rob Portman | 44% | Aug 30 | Aug 30 | Rasmussen | ||
| Ohio | Lee Fisher | 37% | Rob Portman | 45% | Aug 16 | Aug 16 | Rasmussen | ||
| Ohio | Lee Fisher | 36% | Rob Portman | 43% | Aug 06 | Aug 08 | IPSOS | ||
| Ohio | Lee Fisher | 40% | Rob Portman | 44% | Aug 02 | Aug 02 | Rasmussen | ||
| Ohio | Lee Fisher | 39% | Rob Portman | 45% | Jul 19 | Jul 19 | Rasmussen | ||
| Ohio | Lee Fisher | 39% | Rob Portman | 43% | Jun 29 | Jun 29 | Rasmussen | ||
| Ohio | Lee Fisher | 40% | Rob Portman | 38% | Jun 26 | Jun 27 | PPP | ||
| Ohio | Lee Fisher | 42% | Rob Portman | 40% | Jun 22 | Jun 27 | Quinnipiac U. | ||
| Ohio | Lee Fisher | 43% | Rob Portman | 43% | Jun 03 | Jun 03 | Rasmussen | ||
| Ohio | Lee Fisher | 47% | Rob Portman | 46% | May 11 | May 20 | U. of Cincinnati | ||
| Ohio | Lee Fisher | 43% | Rob Portman | 42% | May 05 | May 05 | Rasmussen | ||
| Ohio | Lee Fisher | 40% | Rob Portman | 37% | Apr 21 | Apr 26 | Quinnipiac U. | ||
| Ohio | Lee Fisher | 38% | Rob Portman | 43% | Mar 30 | Mar 30 | Rasmussen | ||
| Ohio | Lee Fisher | 41% | Rob Portman | 37% | Mar 23 | Mar 29 | Quinnipiac U. | ||
| Ohio | Lee Fisher | 36% | Rob Portman | 41% | Mar 20 | Mar 21 | PPP | ||
| Ohio | Lee Fisher | 39% | Rob Portman | 44% | Mar 04 | Mar 04 | Rasmussen | ||
| Ohio | Lee Fisher | 37% | Rob Portman | 40% | Feb 16 | Feb 21 | Quinnipiac U. | ||
| Ohio | Lee Fisher | 39% | Rob Portman | 43% | Feb 05 | Feb 06 | Rasmussen | ||
| Ohio | Lee Fisher | 37% | Rob Portman | 44% | Jan 12 | Jan 12 | Rasmussen | ||
| Ohio | Lee Fisher | 31% | Rob Portman | 37% | Jan 06 | Jan 11 | Polimetrix | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Oklahoma | Jim Rogers | 24% | Tom Coburn* | 67% | Aug 26 | Aug 26 | Rasmussen | ||
| Oklahoma | Jim Rogers | 31% | Tom Coburn* | 65% | Jul 28 | Jul 28 | Rasmussen | ||
| Oklahoma | Jim Rogers | 26% | Tom Coburn* | 65% | Jun 30 | Jun 30 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Oregon | Ron Wyden* | 56% | Jim Huffman | 36% | Aug 22 | Aug 22 | Rasmussen | ||
| Oregon | Ron Wyden* | 53% | Jim Huffman | 35% | Jul 25 | Jul 27 | SurveyUSA | ||
| Oregon | Ron Wyden* | 51% | Jim Huffman | 35% | Jul 26 | Jul 26 | Rasmussen | ||
| Oregon | Ron Wyden* | 50% | Jim Huffman | 32% | Jun 21 | Jun 21 | Davis+Hibbits+Midghall | ||
| Oregon | Ron Wyden* | 47% | Jim Huffman | 37% | Jun 17 | Jun 17 | Rasmussen | ||
| Oregon | Ron Wyden* | 51% | Jim Huffman | 38% | Jun 07 | Jun 09 | SurveyUSA | ||
| Oregon | Ron Wyden* | 51% | Jim Huffman | 38% | May 24 | May 24 | Rasmussen | ||
| Oregon | Ron Wyden* | 49% | Jim Huffman | 35% | Feb 16 | Feb 16 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Pennsylvania | Joe Sestak | 39% | Pat Toomey | 45% | Aug 30 | Aug 30 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 37% | Pat Toomey | 47% | Aug 27 | Aug 29 | IPSOS | ||
| Pennsylvania | Joe Sestak | 31% | Pat Toomey | 40% | Aug 16 | Aug 23 | Franklin+Marshall Coll. | ||
| Pennsylvania | Joe Sestak | 36% | Pat Toomey | 45% | Aug 14 | Aug 16 | PPP | ||
| Pennsylvania | Joe Sestak | 37% | Pat Toomey | 46% | Aug 16 | Aug 16 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 35% | Pat Toomey | 48% | Aug 04 | Aug 04 | We Ask America | ||
| Pennsylvania | Joe Sestak | 39% | Pat Toomey | 45% | Jul 28 | Jul 28 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 38% | Pat Toomey | 45% | Jul 14 | Jul 14 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 43% | Pat Toomey | 43% | Jul 06 | Jul 11 | Quinnipiac U. | ||
| Pennsylvania | Joe Sestak | 39% | Pat Toomey | 45% | Jun 29 | Jun 29 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 41% | Pat Toomey | 41% | Jun 19 | Jun 21 | PPP | ||
| Pennsylvania | Joe Sestak | 38% | Pat Toomey | 45% | Jun 02 | Jun 02 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 46% | Pat Toomey | 42% | May 19 | May 19 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 40% | Pat Toomey | 42% | May 04 | May 10 | Quinnipiac U. | ||
| Pennsylvania | Joe Sestak | 28% | Pat Toomey | 29% | May 03 | May 09 | Franklin+Marshall Coll. | ||
| Pennsylvania | Joe Sestak | 40% | Pat Toomey | 42% | May 06 | May 06 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 36% | Pat Toomey | 47% | Apr 12 | Apr 12 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 22% | Pat Toomey | 31% | Mar 29 | Apr 07 | Muhlenberg Coll. | ||
| Pennsylvania | Joe Sestak | 34% | Pat Toomey | 42% | Mar 30 | Apr 05 | Quinnipiac U. | ||
| Pennsylvania | Joe Sestak | 36% | Pat Toomey | 42% | Mar 29 | Apr 01 | PPP | ||
| Pennsylvania | Joe Sestak | 19% | Pat Toomey | 27% | Mar 15 | Mar 21 | Franklin+Marshall Coll. | ||
| Pennsylvania | Joe Sestak | 37% | Pat Toomey | 42% | Mar 15 | Mar 15 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 36% | Pat Toomey | 39% | Feb 22 | Feb 28 | Quinnipiac U. | ||
| Pennsylvania | Joe Sestak | 20% | Pat Toomey | 38% | Feb 15 | Feb 21 | Franklin+Marshall Coll. | ||
| Pennsylvania | Joe Sestak | 35% | Pat Toomey | 43% | Feb 08 | Feb 08 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 19% | Pat Toomey | 41% | Jan 18 | Jan 24 | Franklin+Marshall Coll. | ||
| Pennsylvania | Joe Sestak | 35% | Pat Toomey | 43% | Jan 18 | Jan 18 | Rasmussen | ||
| Pennsylvania | Joe Sestak | 33% | Pat Toomey | 37% | Jan 06 | Jan 11 | Polimetrix | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| South Carolina | Alvin Greene | 19% | Jim DeMint* | 63% | Aug 25 | Aug 25 | Rasmussen | ||
| South Carolina | Alvin Greene | 20% | Jim DeMint* | 62% | Jul 29 | Jul 29 | Rasmussen | ||
| South Carolina | Alvin Greene | 21% | Jim DeMint* | 58% | Jun 10 | Jun 10 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Utah | Sam Granato | 29% | Mike Lee | 54% | Aug 23 | Aug 23 | Rasmussen | ||
| Utah | Sam Granato | 28% | Mike Lee | 58% | Jun 23 | Jun 23 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Vermont | Pat Leahy* | 64% | Len Britton | 29% | Jun 17 | Jun 17 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Washington | Patty Murray* | 45% | Dino Rossi | 52% | Aug 18 | Aug 19 | SurveyUSA | ||
| Washington | Patty Murray* | 48% | Dino Rossi | 44% | Aug 18 | Aug 18 | Rasmussen | ||
| Washington | Patty Murray* | 49% | Dino Rossi | 46% | Jul 27 | Aug 01 | PPP | ||
| Washington | Patty Murray* | 49% | Dino Rossi | 47% | Jul 28 | Jul 28 | Rasmussen | ||
| Washington | Patty Murray* | 45% | Dino Rossi | 48% | Jul 14 | Jul 14 | Rasmussen | ||
| Washington | Patty Murray* | 47% | Dino Rossi | 47% | Jun 22 | Jun 22 | Rasmussen | ||
| Washington | Patty Murray* | 47% | Dino Rossi | 40% | Jun 09 | Jun 13 | Elway Poll | ||
| Washington | Patty Murray* | 48% | Dino Rossi | 47% | May 26 | May 26 | Rasmussen | ||
| Washington | Patty Murray* | 42% | Dino Rossi | 40% | May 03 | May 23 | U. of Washington | ||
| Washington | Patty Murray* | 48% | Dino Rossi | 46% | May 04 | May 04 | Rasmussen | ||
| Washington | Patty Murray* | 51% | Dino Rossi | 34% | Apr 29 | May 02 | Elway Poll | ||
| Washington | Patty Murray* | 42% | Dino Rossi | 52% | Apr 19 | Apr 22 | SurveyUSA | ||
| Washington | Patty Murray* | 48% | Dino Rossi | 46% | Apr 06 | Apr 06 | Rasmussen | ||
| Washington | Patty Murray* | 46% | Dino Rossi | 49% | Mar 09 | Mar 09 | Rasmussen | ||
| Washington | Patty Murray* | 46% | Dino Rossi | 48% | Feb 11 | Feb 11 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| West Virginia | Joe Manchin | 48% | John Raese | 42% | Aug 29 | Aug 29 | Rasmussen | ||
| West Virginia | Joe Manchin | 54% | John Raese | 32% | Jul 26 | Aug 02 | Mindfield | ||
| West Virginia | Joe Manchin | 51% | John Raese | 35% | Jul 22 | Jul 22 | Rasmussen | ||
| State | Democrat | D-pct | Republican | R-pct | Independent | I-pct | Start | End | Pollster |
| Wisconsin | Russ Feingold* | 46% | Unknown | 47% | Aug 24 | Aug 24 | Rasmussen | ||
| Wisconsin | Russ Feingold* | 46% | Unknown | 47% | Aug 10 | Aug 10 | Rasmussen | ||
| Wisconsin | Russ Feingold* | 46% | Unknown | 48% | Jul 27 | Jul 27 | Rasmussen | ||
| Wisconsin | Russ Feingold* | 46% | Unknown | 47% | Jul 13 | Jul 13 | Rasmussen | ||
| Wisconsin | Russ Feingold* | 33% | Unknown | 28% | Jun 09 | Jul 10 | U. of Wisconsin | ||
| Wisconsin | Russ Feingold* | 45% | Unknown | 43% | Jun 26 | Jun 27 | PPP | ||
| Wisconsin | Russ Feingold* | 46% | Unknown | 45% | Jun 21 | Jun 21 | Rasmussen | ||
| Wisconsin | Russ Feingold* | 46% | Unknown | 44% | May 25 | May 25 | Rasmussen | ||
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