Six served in the House (Burr, Tom Coburn (R-Okla.), Jim DeMint (R-S.C.), Johnny Isakson (R-Ga.), Thune and Vitter), which is up from four in the Class of 2002.
John McCain, Lindsey Graham, Kelly Ayotte, Pat Toomey, Bob Corker, Ron Johnson, Saxby Chambliss, Tom Coburn, John Hoeven, Dan Coats, Richard Burr and Mike Johanns.