The table below shows how frequently senators supported their party in 2005 and 2006. The scores reflect the percentage of the time that a lawmaker's vote on the floor matched his or her party's majority on roll-call votes that pitted a most Democrats against most Republicans. The two parties split on 389 of 645 Senate roll-call votes over the two years.

STATE	POS	NAME	PARTY	PARTY SUPPORT SCORE
Alabama	1	Richard C. Shelby	R	92
Alabama	2	Jeff Sessions	R	97
Alaska	1	Ted Stevens	R	89
Alaska	2	Lisa Murkowski	R	88
Arizona	1	John McCain	R	81
Arizona	2	Jon Kyl	R	97
Arkansas	1	Blanche Lincoln	D	81
Arkansas	2	Mark Pryor	D	79
California	1	Dianne Feinstein	D	91
California	2	Barbara Boxer	D	98
Colorado	1	Wayne Allard	R	96
Colorado	2	Ken Salazar	D	86
Connecticut	1	Christopher J. Dodd	D	94
Connecticut	2	Joseph I. Lieberman	D	88
Delaware	1	Joseph R. Biden Jr.	D	90
Delaware	2	Thomas R. Carper	D	78
Florida	1	Bill Nelson	D	80
Florida	2	Mel Martinez	R	91
Georgia	1	Saxby Chambliss	R	95
Georgia	2	Johnny Isakson	R	96
Hawaii	1	Daniel K. Inouye	D	90
Hawaii	2	Daniel K. Akaka	D	96
Idaho	1	Larry E. Craig	R	92
Idaho	2	Michael D. Crapo	R	95
Illinois	1	Richard J. Durbin	D	98
Illinois	2	Barack Obama	D	97
Indiana	1	Richard G. Lugar	R	83
Indiana	2	Evan Bayh	D	89
Iowa	1	Charles E. Grassley	R	95
Iowa	2	Tom Harkin	D	97
Kansas	1	Sam Brownback	R	91
Kansas	2	Pat Roberts	R	94
Kentucky	1	Mitch McConnell	R	98
Kentucky	2	Jim Bunning	R	98
Louisiana	1	Mary L. Landrieu	D	76
Louisiana	2	David Vitter	R	94
Maine	1	Olympia J. Snowe	R	56
Maine	2	Susan Collins	R	62
Maryland	1	Paul S. Sarbanes	D	98
Maryland	2	Barbara A. Mikulski	D	97
Massachusetts	1	Edward M. Kennedy	D	99
Massachusetts	2	John Kerry	D	96
Michigan	1	Carl Levin	D	96
Michigan	2	Debbie Stabenow	D	92
Minnesota	1	Mark Dayton	D	95
Minnesota	2	Norm Coleman	R	77
Mississippi	1	Thad Cochran	R	93
Mississippi	2	Trent Lott	R	95
Missouri	1	Christopher S. Bond	R	93
Missouri	2	Jim Talent	R	84
Montana	1	Max Baucus	D	76
Montana	2	Conrad Burns	R	92
Nebraska	1	Chuck Hagel	R	90
Nebraska	2	Ben Nelson	D	42
Nevada	1	Harry Reid	D	93
Nevada	2	John Ensign	R	93
New Hampshire	1	Judd Gregg	R	90
New Hampshire	2	John E. Sununu	R	89
New Jersey	1	Frank R. Lautenberg	D	97
New Jersey	2	Robert Menendez	D	95
New Jersey	2	Jon S. Corzine	D	98
New Mexico	1	Pete V. Domenici	R	89
New Mexico	2	Jeff Bingaman	D	89
New York	1	Charles E. Schumer	D	93
New York	2	Hillary Rodham Clinton	D	94
North Carolina	1	Elizabeth Dole	R	94
North Carolina	2	Richard M. Burr	R	95
North Dakota	1	Kent Conrad	D	77
North Dakota	2	Byron L. Dorgan	D	85
Ohio	1	Mike DeWine	R	68
Ohio	2	George V. Voinovich	R	81
Oklahoma	1	James M. Inhofe	R	94
Oklahoma	2	Tom Coburn	R	93
Oregon	1	Ron Wyden	D	94
Oregon	2	Gordon H. Smith	R	81
Pennsylvania	1	Arlen Specter	R	66
Pennsylvania	2	Rick Santorum	R	92
Rhode Island	1	Jack Reed	D	97
Rhode Island	2	Lincoln Chafee	R	44
South Carolina	1	Lindsey Graham	R	88
South Carolina	2	Jim DeMint	R	97
South Dakota	1	Tim Johnson	D	83
South Dakota	2	John Thune	R	90
Tennessee	1	Bill Frist	R	95
Tennessee	2	Lamar Alexander	R	93
Texas	1	Kay Bailey Hutchison	R	90
Texas	2	John Cornyn	R	96
Utah	1	Orrin G. Hatch	R	95
Utah	2	Robert F. Bennett	R	93
Vermont	1	Patrick J. Leahy	D	97
Vermont	2	James M. Jeffords	I	91
Virginia	1	John W. Warner	R	84
Virginia	2	George Allen	R	95
Washington	1	Patty Murray	D	94
Washington	2	Maria Cantwell	D	92
West Virginia	1	Robert C. Byrd	D	80
West Virginia	2	John D. Rockefeller IV	D	90
Wisconsin	1	Herb Kohl	D	89
Wisconsin	2	Russell D. Feingold	D	94
Wyoming	1	Craig Thomas	R	95
Wyoming	2	Michael B. Enzi	R	96