Senate page     Mar. 12

Senate map
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New polls:  
Dem pickups: (None)
GOP pickups: (None)

Senate races 2024
Senate races 2024

The current breakdown of the Senate is as follows (where we count the three independents as Democrats):

  • 23 Democratic seats are up for reelection in 2024 and 28 seats are not up, for a total of 51 seats
  • 11 Republican seats are up for reelection in 2024 and 38 seats are not up, for a total of 49 seats

For the time being, we are assuming all incumbents will run for reelection unless they specifically state that they won't.

The map strongly favors the Republicans. Half a dozen Democrats are potentially in danger and no Republicans are potentially in danger. Democrats have to play defense in Montana, Ohio, Wisconsin, and West Virginia, among other places.

The Democratic-held seats are listed first below, in alphabetical order by state, with the Independents and then Republicans following.

Click on a picture for the candidate's webpage.
Click on a name for the candidate's entry in Wikipedia.
Click on a party (D) or (R) for the state party.

The indicates a race to watch.

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Democratic-held seats

California

Challenger Challenger Notes           Polls
Candidate unknown
Candidate
unknown

(D)
Candidate unknown
Candidate
unknown

(D)
Dianne Feinstein will be 91 on Election Day, which is well past retirement age in most professions, but is middle-aged in a body where members sometimes linger past the century mark (see: Thurmond, Strom). Still, she's decided to throw in the towel. This will set off a feeding frenzy because open Senate seats in California are a once-in-a-generation event. At least half a dozen Democrats are sure to jump in. Rep. Katie Porter (D-CA) couldn't wait and declared even before Feinstein announced her plans. A day later, Rep. Barbara Lee (D-CA) told fellow lawmakers that she was in. Rep. Adam Schiff (D-CA) is also in. Rep. Ro Khanna (D-CA) may soon join them all. And there will be be more. Given California's jungle primary system, the Nov. 2024 election will likely be one Democrat against another. And in any case, the seat will stay blue. The only open question is which Democrat will be sitting in it.

Connecticut

Incumbent Challenger Notes           Polls
Chris Murphy
Chris
Murphy

(D)
Candidate unknown
Candidate
unknown

(R)
Nothing to see here. Murphy is popular in his home state, is a leading Trump critic, and won his first Senate election by 11 points. The second time he won by 20 points. The Republicans will find some sacrificial lamb, but it won't matter who it is except to determine whether Murphy's margin is 10 points, 20 points, or 30 points.

Delaware

Incumbent Challenger Notes           Polls
Tom Carper
Tom
Carper

(D)
Candidate unknown
Candidate
unknown

(R)
Given how many seats the Democrats need to defend in 2024, they are lucky that quite a few of them are safe. Delaware is in that category; the state is very blue, and Carper has a 2-to-1 approve-to-disapprove ratio. He'll be reelected easily. Maybe Joe Biden will even campaign for his own senator as a courtesy, though Carper does not need any help.

Hawaii

Incumbent CHallenger Notes           Polls
Mazie Hirono
Mazie
Hirono

(D)
Candidate unknown
Candidate
unknown

(R)
Hawaii is the bluest state in the Union, and Hirono has solid approval ratings. The only thing she has to fear is a challenge from the left. That didn't materialize last time and probably won't this time. She's safe.

Maryland

Incumbent Challenger Notes           Polls
Ben Cardin
Ben
Cardin

(D)
Candidate unknown
Candidate
unknown

(R)
Ben Cardin probably wants a fourth term, and he will get it. After all, he is only a kid (in Senate years) at 80. If he should decide to call it quits, Maryland is full of ambitious young Democrats who will fight it out for the nomination, but even then the seat is probably safe. The only chance the Republicans have is that Cardin retires and Gov. Larry Hogan (R-MD) runs for it and gets the GOP nomination.

Massachusetts

Incumbent Challenger Notes           Polls
Elizabeth Warren
Elizabeth
Warren

(D)
Candidate unknown
Candidate
unknown

(R)
Warren has a huge national profile and is an incumbent in a very blue state. The only Republican who could possibly cause her to sweat is former governor Charlie Baker. If Baker doesn't run, she won't even have to bother campaigning. If he does, she will have to campaign since he has also won statewide election in Massachusetts. But she'll still win.

Michigan

Challenger Challenger Notes           Polls
Candidate unknown
Candidate
unknown

(D)
Candidate unknown
Candidate
unknown

(R)
Debbie Stabenow eked out a victory in her first Senate race, defeating incumbent Spencer Abraham (R) 49.5% to 48%. Since then, she's won by 16, 21, and 5 points, so she's clearly good at harnessing the power of incumbency. At 72, she could probably serve another two terms easily, but she decided to retire and won't run for reelection. The Democratic bench in Michigan is loaded. The governor, lieutenant governor, secretary of state, and AG are all Democrats. So are seven members of the U.S. House and 20 members of the state Senate. There will be a lot of action in the Democratic primary as the field sorts itself out. So far, only one candidate has announced, Rep. Elissa Slotkin (D-MI), but there could be more.

Minnesota

Incumbent Challenger Notes           Polls
Amy Klobuchar
Amy
Klobuchar

(D)
Candidate unknown
Candidate
unknown

(R)
Amy Klobuchar is one of the most popular members of the Senate with an approval rating of 58%. She ran for president in 2020 and would probably consider it again if Joe Biden declines to run. If he wants another term, she will go for another term as well and get it easily.

Montana   

Incumbent Challenger Notes           Polls
Jon Tester
Jon
Tester

(D)
Candidate unknown
Candidate
unknown

(R)
Montana is a tough state to get a read on. On one hand, Donald Trump won there by 17 points in 2020. The other senator, Steve Daines, is a Republican as are the governor and both representatives. Nevertheless, Tester has been elected to the Senate three times, so he is a good fit for the state. This race will be his toughest ever, with the Republicans doing absolutely everything to unseat him. Of course, they could blow it by nominating a crazy Trumpist, but otherwise Montana will be a huge battleground.

Nevada

Incumbent Challenger Notes           Polls
Jacky Rosen
Jacky
Rosen

(D)
Candidate unknown
Candidate
unknown

(R)
Nevada is a bluish swing state. The voters just tossed out the Democratic governor and replaced him with a Republican. However, both senators are Democrats, three of the four House seats have Democrats sitting in them, and Democrats control both chambers of the state legislature. Rosen won her first try for the Senate in 2018 when she beat an incumbent (Dean Heller) by 5 points. She is certainly in a strong position in a presidential election year but no shoo-in, especially if former Nevada AG Adam Laxalt runs again, despite his loss in November to Sen. Catherine Cortez Masto (D-NV).

New Jersey

Incumbent Challenger Notes           Polls
Bob Menendez
Bob
Menendez

(D)
Candidate unknown
Candidate
unknown

(R)
New Jersey hasn't sent a Republican to the Senate since 1972, so this seat is likely to remain in Democratic hands next year. However, Bob Menendez has been connected to a shady eye doctor named Dr. Salomon Melgen, who is now a convicted felon, and Menendez was indicted for taking bribes from him. The trial resulted in a hung jury and the government decided to drop the case, so Menendez got off. The Senate Ethics Committee admonished Menendez. A few months later, he won reelection by only 12 points, less than usual, but still pretty decent. After all, he may be corrupt, but it's New Jersey for heavens' sake. What did you expect?

New Mexico

Incumbent Challenger Notes           Polls
Martin Heinrich
Martin
Heinrich

(D)
Candidate unknown
Candidate
unknown

(R)
Martin Heinrich's net approval rating is +14 points and New Mexico is a blue state. In 2022, the Republicans ran a TV weatherman (Mark Ronchetti) against Gov. Michelle Lujan Grisham (D-NM) and she won by 6 points. Maybe he'll try for the Senate a second time (he also ran in 2020) and predict sunny weather. If he doesn't, the Republican bench in New Mexico is thin. Actually, even if he does, the Republican bench is thin. Heinrich should be able to hang on without too much sweating.

New York

Incumbent Challenger Notes           Polls
Kirsten Gillibrand
Kirsten
Gillibrand

(D)
Candidate unknown
Candidate
unknown

(R)
Some New Yorkers haven't forgotten how Gillibrand personally drove then-senator Al Franken from the Senate and haven't forgiven her for that, but New York is a blue state and she should be able to win—unless Rep. Alexandria Ocasio-Cortez (D-NY) challenges her in a primary. That would be sight to see and Gillibrand might not win that. If AOC waits her turn, Gillibrand is safe.

Ohio   

Incumbent Challenger Notes           Polls
Sherrod Brown
Sherrod
Brown

(D)
Candidate unknown
Candidate
unknown

(R)
Ohio is becoming redder every year and Sen. Sherrod Brown (D-OH) is going to have one tough race here. In 2022, Tim Ryan, who is a pretty good match for the state, was badly beaten by Sen. J.D. Vance (R-OH)l who is a very bad match for the state. Brown is a liberal, but one with strong populist leanings. He laments trade agreements, for example, and is strongly pro-union. At the same time, Brown disdains the divisiveness of Donald Trump, declaring that you have to be for all the "little guys" or for none of them. He's also been critical of many Trump appointments. Despite Ohio's red hue, Brown has won five statewide elections (two for secretary of state and three for the U.S. Senate) and it is always hard to beat a popular incumbent. Nevertheless, if the Republicans can come up with a strong candidate, this will be a real barn burner. One candidate, Matt Dolan, whose family owns the Cleveland Guardians, has already announced a run. Secretary of State Frank LaRose is also a potential candidate

Pennsylvania

Incumbent Challenger Notes           Polls
Bob Casey
Bob
Casey

(D)
Candidate unknown
Candidate
unknown

(R)
Bob Casey is a moderate, which is a good match for this swing state. His net approval rating is +5, which is OK, but not great. On the other hand, he has won statewide election in Pennsylvania six times as auditor general, treasurer, and senator. Pennsylvania Republicans seem to have trouble putting up decent candidates, and if they come up with another turkey, Casey is safe.

Rhode Island

Incumbent Challenger Notes           Polls
Sheldon Whitehouse
Sheldon
Whitehouse

(D)
Candidate Unknown
Candidate
Unknown

(R)
Rhode Island is one of the bluest states in the country, with a grand total of zero Republicans holding office at the state and federal levels. Whitehouse won his last Senate race by 23 points. So, there's not much drama here. Whitehouse will get another term.

Virginia

Incumbent Challenger Notes           Polls
Tim Kaine
Tim
Kaine

(D)
Candidate unknown
Candidate
unknown

(R)
Tim Kaine has solid approval numbers with a net approval of +9 points. Yes, Gov. Glenn Youngkin (R-VA) was elected governor in 2021, but that may be a fluke due to the Democrats running a somewhat sleazy candidate. Kaine has won statewide election in Virginia four times and unless the Republicans can pull a rabbit out of a hat and find a sterling candidate, Kaine will surely win a fifth time in 2024.

Washington

Incumbent Challenger Notes           Polls
Maria Cantwell
Maria
Cantwell

(D)
Candidate unknown
Candidate
unknown

(R)
Maria Cantwell is an outspoken opponent of Donald Trump, and has hewed to a Bernie Sanders-style party line, including a $15 minimum wage, aggressive protections for the environment, and healthcare for all. All of this makes her very popular in Washington, and an overwhelming favorite to be elected to a fifth term. The other Washington senator, Patty Murray (D-WA), won her 2022 contest by 18 points. Cantwell is a shoo-in for another term.

West Virginia   

Incumbent Challenger Notes           Polls
Joe Manchin
Joe
Manchin

(D)
Candidate unknown
Candidate
unknown

(R)
West Virginia went for Donald Trump by a mind-boggling 40 points, which leaves Joe Manchin dead in the water, right? Maybe not. Manchin has won six statewide elections in West Virginia. He seems to know how to keep his constituents happy, joining with the Democrats on some issues (he's pro-labor, pro-Obamacare) and jumping ship on others (he's pro-coal, pro-life, pro-gun). In fact, Manchin voted with Donald Trump when he was president more than any senator from his party (and, in fact, more often than Sen. Susan Collins of Maine, who is an actual Republican). Manchin has frustrated Joe Biden no end and no doubt that will be a selling point in his reelection campaign. A lot depends on who is challenger is. If term-limited Gov. Jim Justice (R-WV) jumps in, it will be a huge battle. Justice is a coal billionaire and the richest person in West Virginia. Against him, Manchin's main argument is his 14 years of seniority and position as chairman of the Senate Committee on Energy and Natural Resources. He will try to make the case that West Virginia is better off with a powerful senator than a newbie with no power at all. This will be Manchin's toughest race ever.

Wisconsin   

Incumbent Challenger Notes           Polls
Tammy Baldwin
Tammy
Baldwin

(D)
Candidate unknown
Candidate
unknown

(R)
Given Tammy Baldwin's middling approval rating (net +1 approval) and Wisconsin's position as the ultimate swing state, this one could be close. Of course, the Republicans need to find a really strong candidate to beat an incumbent two-term senator. Baldwin is openly lesbian, but that doesn't seem to matter much to the voters.


Independent-held seats

Arizona   

Incumbent Challenger Challenger Notes           Polls
Kyrsten Sinema
Kyrsten
Sinema

(I)
Candidate unknown
Candidate
unknown

(D)
Candidate unknown
Candidate
unknown

(R)
This one is very complicated. Sinema was elected as a Democrat, frustrated Joe Biden on just about everything, then in 2022 became an independent. Nobody knows what she is up to. Democrats are pretty sure she holds regular strategy meetings with Satan, though they are not clear how much she charges the Devil for her assistance. On Jan. 23, 2023, Rep. Ruben Gallego (D-AZ) announced a Senate run. He is the strong favorite to get the Democratic nomination. In a three-way race, Sinema might be a spoiler and pull off enough Democratic votes to elect the Republican. On the other hand, some number of Republicans might vote for her because they like how she blocked Biden over and over. Maybe Sinema won't run at all. So far, she's not syaing. If either Kari Lake or Blake Masters gets the Republican nomination, the chances of Gallego winning this will go up sharply. If former governor Doug Ducey (R) jumps in, Gallego's chances go way down. This will likely be the hottest Senate race this cycle, and not just due to the weather in Phoenix in August.

Maine

Incumbent Challenger Challenger Notes           Polls
Angus King
Angus
King

(I)
Candidate unknown
Candidate
unknown

(D)
Candidate unknown
Candidate
unknown

(R)
Angus King is very popular in Maine and, as an independent, can reasonably expect to get both Democratic and Republican votes. Of course, that means he can also reasonably expect to face both a Democratic and Republican challenger, all the way to the bitter end. The Democratic Party will probably nominate someone, because it's hard to keep some random Joe or Josephine from declaring, but not support that candidate at all. King is not as popular as that other New England independent, Bernie Sanders, but he has establishment support on both sides of the aisle, and is still a sure bet in November.

Vermont

Incumbent Challenger Challenger Notes           Polls
Bernie Sanders
Bernie
Sanders

(I)
Candidate unknown
Candidate
unknown

(D)
Candidate unknown
Candidate
unknown

(R)
Bernie Sanders is the single most popular senator in America, with a remarkable 63% approval rating. While Vermont's meteorolgical climate is very different from Hawaii's, its political climate is about the same. Bernie is as sure a shoo-in as they come.


Republican-held seats

Florida

Incumbent Challenger Notes           Polls
Rick Scott
Rick
Scott

(R)
Candidate unknown
Candidate
unknown

(D)
Rick Scott was planning to run for president in 2024. He even drew up a platform. It included things like having Social Security and Medicare expire in 5 years unless Congress voted to keep them. That didn't go over real big, to put it mildly. That was the end of President Scott. Democrats will use that against him, but it probably won't be enough. Sen. Marco Rubio (R-FL) won easily in 2022 against a strong challenger. It is doubtful the Democrats can find an even better one against Scott. It would probably take a huge blue wave to unseat the Senator. That said, if Donald Trump is the GOP nominee for president, that could trigger said huge blue wave.

Indiana

Challenger Challenger Notes           Polls
Candidate unknown
Candidate
unknown

(R)
Candidate unknown
Candidate
unknown

(D)
Sen. Mike Braun (R-IN) is running for governor, leaving an open seat here. The Republican primary will be a battle royale. Rep. Jim Banks (R-IN), a strong Trumpist, is in and more are expected shortly. The Democrats could profit from the open seat if they can find a strong candidate. But their bench in Indiana is very thin, especially after Secretary of Transportation Pete Buttigieg hightailed it to his husband's home state of Michigan.

Mississippi

Incumbent Challenger Notes           Polls
Roger Wicker
Roger
Wicker

(R)
Candidate unknown
Candidate
unknown

(D)
There was a time when Democrats could win elections in Mississippi, even if they nominated a yellow dog, but then the Civil Rights Movement happened. The last time the state sent a Democrat to the Senate was in 1982, when John C. Stennis was elected to the final term of a career that began in 1947. Roger Wicker is going for his fourth term in 2024. He'll get it.

Missouri

Incumbent Challenger Notes           Polls
Josh Hawley
Josh
Hawley

(R)
Candidate unknown
Candidate
unknown

(D)
Josh Hawley has gone full-bore Trumper, no holds barred. Missouri used to be a swing state, but it has since become a red state. The Democrats ran a wealthy beer heiress (Trudy Busch Valentine) for the open seat in 2022 and lost badly against another Trumper, Sen. Eric Schmitt (R-MO). Unless the Democrats can find another, even better heiress in 2024, the same fate awaits them.

Nebraska

Incumbent Challenger Notes           Polls
Deb Fischer
Deb
Fischer

(R)
Candidate unknown
Candidate
unknown

(D)
Fischer has moderate approval ratings (44% approval vs. 38% disapproval) and is a decent fundraiser. The Democrats' problem is that they need to find a strong opponent. There aren't a lot of them in Nebraska. Maybe what the Democrats should do is dig up William Jennings Bryan and run him.

Nebraska-special

Incumbent Challenger Notes           Polls
Pete Ricketts
Pete
Ricketts

(R)
Candidate unknown
Candidate
unknown

(D)
Sen. Pete Ricketts (R-NE) was appointed to the seat left behind by Ben Sasse when he left to become president of the University of Florida. Now he has to compete in a special election to hold the seat. He has already won election twice for governor, so that shouldn't be so hard.

North Dakota

Incumbent Challenger Notes           Polls
Kevin Cramer
Kevin
Cramer

(R)
Candidate unknown
Candidate
unknown

(D)
North Dakota is an extremely red state now. It used to be more prarie-populist. At recently as 2018 it had a Democratic senator, Heidi Heitkamp, but she lost her reelection bid in 2018. Unless the Democrats can somehow find another strong prarie populist, Cramer will get a second term. Maybe, while they've got their shovels out for William Jenning Bryan, they could also dig up Quentin Burdick, who won six elections as a Democrat before dying in office.

Tennessee

Challenger Challenger Notes           Polls
Marsha Blackburn
Marsha
Blackburn

(R)
Candidate unknown
Candidate
unknown

(D)
Marsha Blackburn is not one of the smartest senators, but she is one of the Trumpiest. In Tennessee, that is good enough. Democrats do win occasionally in Tennessee. Phil Bredesen (D) served as governor from 2003 to 2011, but he lost to Blackburn in 2018. Unfortunately for the Democrats, Bredesen was their best hope and he wasn't good enough.

Texas

Incumbent Challenger Notes           Polls
Ted Cruz
Ted
Cruz

(R)
Candidate unknown
Candidate
unknown

(D)
A lot of Texans don't like Ted Cruz because he thinks first of what is good for Ted Cruz and second what is good for Texas. Well, actually, what is good for Ted Cruz is probably also second and third, but what is good for Texas is a solid fourth. Or maybe fifth. Beto O'Rourke came within 2½ points of beating him in 2018, but Cruz ultimately won. Since then, Cruz probably hasn't become any more popular, in part because everyone knows he is just using the Senate as a stepping stone to run for president. If he decides to run for president again in 2024, he can't run for reelection to the Senate. That will create an open seat, which might give the Democrats some hope, especially if the Republicans nominate an awful candidate. On the other hand, even though Texas is really big, there aren't a lot of more awful candidates than Cruz. And the Democratic bench is not especially deep in Texas. Until Cruz makes a decision, and until the Democratic challenger is known, it will be tough to handicap this race.

Utah

Challenger Challenger Notes           Polls
Mitt Romney
Mitt
Romney

(R)
Candidate unknown
Candidate
unknown

(D)
Mitt Romney is quite popular in Utah. If he wants another term, he can probably have it. If Evan McMullin runs as an independent again, the Democrats will probably support him rather than run their own candidate. However, that stunt didn't work in 2022 against Sen. Mike Lee (R-UT) and Romney is more popular than Lee, so it probably won't work in 2024, either.

Wyoming

Incumbent Challenger Notes           Polls
John Barrasso
John
Barrasso

(R)
Candidate unknown
Candidate
unknown

(D)
And finally, it's the biggest slam dunk of them all for the Republicans. Wyoming is ruby red, and Barasso has won his Senate elections by 55, 54, and 36 points, respectively. Barrasso could beat up a reporter the night before the election, and then get caught in bed with a live boy, a dead girl, and a goat, and he'd still win. The Democrats will have to hunt high and low to see if they can find a party member who lives in Wyoming and is willing to run. It could be tough. Is reader R.L.D. in Sundance interested?
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