Roll Call magazine regularly publishes its "Casualty List". This weeks list has the following statistics -
9 Congressmen (4 Dems & 5 Repubs) are standing down from the House to run for the Senate.
9 Congressmen (2D, 7R) are standing down to run for other offices - plus 1 Republican Senator.
3 Congressmen plan to retire (all Democrats) and 7 Senators (3D, 4R)
Running for Senate
Roy Blunt R-Mo
Mike Castle R-Del
Paul Hodes D-NH
Mark Kirk R-Ill
Kendrick Meek D-Fla
Charlie Melancon D-La
Jerry Moran R-Kan
Joe Sestak D-PA
Todd Tiahrt R-Kan
Running for Other Office
Neil Abercrombie D-Hawaii
Gresham Barrett R-SC
Artur Davis D-Ala
Nathan Deal R-GA
Mary Fallin R-OK
Jim Gerlach R-PA
Pete Hoekstra R-Mich
Adam Putnam R-Fla
Zach Wamp R-TN
Senator Sam Brownback R-Kan
Retiring
Dennis Moore D-Kan
John Tanner D-TN
Brian Baird D-Wash
Senator Kit Bond R-MO
Senator Jim Bunning R-KY
Senator Roland Burris D-Ill
Senator Judd Gregg R-NH
Senator Ted Kaufman D-Del
Senator Paul Kirk D-Mass
Senator George Voinovich R-Ohio