Benedict Arnolds in the U.S. Senate

Lamar Alexander (R-TN)
John Cornyn (R-TX)
Kelly Ayotte (R-NH)
Lindsey Graham (R-SC)
John Barrasso (R-WY)
John Hoeven (R-ND)
Roy Blunt (R-MO)
Johnny Isakson (R-GA)
John Boozman (R-AR)
Mike Johanns (R-NE)
Richard Burr (R-NC)
Ron Johnson (R-WI)
Saxby Chambliss (R-GA)
Mark Kirk (R-IL)
Jeff Chiesa (R-NJ)
John McCain (R-AZ)
Dan Coats (R-IN)
Mitch McConnell (R-KY)
Tom Coburn (R-OK)
Lisa Murkowksi (R-AK)
Thad Cochran (R-MS)
John Thune (R-SD)
Susan Collins (R-ME)
Roger Wicker (R-MS)
Bob Corker (R-TN)