HOW MUCH OF A PARTY ANIMAL?

Each year, Congressional Quarterly measures how often each member of Congress voted with his or her party's majority. Here's how often Coleman backed fellow Republicans from 2003 to 2008, compared with average party unity scores for other members of the Minnesota congressional delegation during his term.

SEN. NORM COLEMAN, YEAR BY YEAR

2003: 92 percent (44th of 51 GOP senators)

2004: 91 percent (39th of 51)

2005: 77 percent (50th of 55)

2006: 77 percent (48th of 55)

2007: 64 percent (45th of 49)

2008 *: 70 percent (44th of 49)

*through July

AVERAGE PARTY UNITY, MINNESOTA DELEGATION, 2003-2008*

Rep. Keith Ellison (D) 99 percent (2007-08)

Rep. Betty McCollum (D) 98 percent

Rep. Michele Bachmann (R) 97 percent (2007-08)

Rep. John Kline (R) 97 percent

Rep. Tim Walz (D) 95 percent (2007-08)

Rep. Gil Gutknecht (R) 94 percent (2003-06)

Sen. Mark Dayton (D) 93 percent (2003-06)

Rep. Mark Kennedy (D) 93 percent (2003-06)

Sen. Amy Klobuchar (D) 93 percent (2007-08)

Rep. James Oberstar (D) 93 percent

Rep. Martin Sabo (D) 93 percent (2003-06)

Sen. Norm Coleman (R) 79 percent

Rep. Jim Ramstad (R) 78 percent

Rep. Collin Peterson (D) 73 percent

* Through July

Source: Congressional Quarterly