48 Democratic Senate seats^52 Republican Senate seats^Alabama|Incumbent|Richard Shelby (R)|Challenger|Ron Crumpton (D)|64%|36%^Alaska|Incumbent|Lisa Murkowski (R)|Challenger|Unknown (D)|44%|11%^Arizona|Incumbent|John McCain (R)|Challenger|Ann Kirkpatrick (D)|53%|41%^Arkansas|Incumbent|John Boozman (R)|Challenger|Conner Eldridge (D)|53%|41%^California|Challenger|Kamala Harris (D)|Challenger|Loretta Sanchez (D)|63%|37%^Colorado|Incumbent|Michael Bennet (D)|Challenger|Darryl Glenn (R)|49%|CO!iP-R%^Connecticut|Incumbent|Richard Blumenthal (D)|Challenger|Dan Carter (R)|63%|CT!iP-R%^Florida|Incumbent|Unknown (R)|Challenger|Unknown - primary is Aug. 30 (D)|50%|44%^Georgia|Incumbent|Johnny Isakson (R)|Challenger|Jim Barksdale (D)|55%|41%^Hawaii|Incumbent|Brian Schatz (D)|Challenger|Unknown (R)|74%|HI!iP-R%^Idaho|Incumbent|Mike Crapo (R)|Challenger|Jerry Sturgill (D)|66%|28%^Illinois|Incumbent|Mark Kirk (R)|Challenger|Tammy Duckworth (D)|40%|54%^Indiana|Challenger|Todd Young (R)|Challenger|Evan Bayh (D)IN|52%|42%^Iowa|Incumbent|Chuck Grassley (R)|Challenger|Patty Judge (D)|60%|36%^Kansas|Incumbent|Jerry Moran (R)|Challenger|Patrick Wiesner (D)|62%|32%^Kentucky|Incumbent|Rand Paul (R)|Challenger|Jim Gray (D)|57%|43%^Louisiana|Challenger|Unknown(R)|Challenger|Unknown(D)LA|25%|18%^Maryland|Challenger|Kathy Szeliga (R)|Challenger|Chris Van Hollen (D)MD|60%|36%^Missouri|Incumbent|Roy Blunt (R)|Challenger|Jason Kander (D)|49%|46%^Nevada|Challenger|Joe Heck (R)|Challenger|Catherine Cortez-Masto (D)NV|47%|44%^New Hampshire|Incumbent|Kelly Ayotte (R)|Challenger|Maggie Hassan (D)|47%|48%^New York|Incumbent|Chuck Schumer (D)|Challenger|Wendy Long (R)|70%|NY!iP-R%^North Carolina|Incumbent|Richard Burr (R)|Challenger|Deborah Ross (D)|51%|45%^North Dakota|Incumbent|John Hoeven (R)|Challenger|Eliot Glassheim (D)|79%|17%^Ohio|Incumbent|Rob Portman (R)|Challenger|Ted Strickland (D)|58%|40%^Oklahoma|Incumbent|James Lankford (R)|Challenger|Mike Workman (D)|67%|25%^Oregon|Incumbent|Ron Wyden (D)|Challenger|Mark Callahan (R)|57%|OR!iP-R%^Pennsylvania|Incumbent|Pat Toomey (R)|Challenger|Katie McGinty (D)|49%|47%^South Carolina|Incumbent|Tim Scott (R)|Challenger|Thomas Dixon (D)|61%|37%^South Dakota|Incumbent|John Thune (R)|Challenger|Jay Williams (D)|72%|28%^Utah|Incumbent|Mike Lee (R)|Challenger|Jonathan Swinton (D)|68%|27%^Vermont|Incumbent|Patrick Leahy (D)|Challenger|Scott Milne (R)|61%|VT!iP-R%^Washington|Incumbent|Patty Murray (D)|Challenger|Unknown (R)|60%|WA!iP-R%^Wisconsin|Incumbent|Ron Johnson (R)|Challenger|Russ Feingold (D)|50%|47%^