Senate

Solid Democratic (8)

• Reed (Rhode Island)
• Coons (Delaware)
• Durbin (Illinois)*
• Schatz (Hawaii)**
• T. Udall (New Mexico)
• Markey (Massachusetts)
• Reed (Rhode Island)
• Merkley (Oregon)
  
  

Likely Democratic (5)

• Open New Jersey (Chiesa)
• M. Udall (Colorado)
• Open Iowa (Harkin)
• Shaheen (New Hampshire)
• Franken (Minnesota)

Leans Democratic (2)

• Open Michigan (Levin)
• Hagan (North Carolina)

Toss-ups (4)

• Open Montana (Baucus)
• Landrieu (Louisiana)
• Begich (Alaska)
• Pryor (Arkansas)

Leans Republican (2)

• McConnell (Kentucky)
• Open West Virginia (Rockefeller)
  
  

Likely Republican (4)

• Open South Dakota (Johnson)
• Cornyn (Texas)
• Open Georgia (Chambliss)
• Collins (Maine)*

Safe Republican (9)

• Open Nebraska (Johanns)
• Risch (Idaho)
• Cochran (Mississippi)
• Alexander (Tennessee)
• Sessions (Alabama)
• Graham (South Carolina)
• Scott (South Carolina-B)
• Roberts (Kansas)*
• Inhofe (Oklahoma)

(Updates)
(7/01/2013) List Creation


*Denotes potential retirement
**Competitive primary between Colleen Hanabusa and Brian Schatz (Seat originally vacated by the death of Daniel Inouye