http://www.politickerme.com/wallyedgeme/2145/bush-loyalty-score-us-senateCQ Politics has
examined all of the roll-call votes during the seven-and-a-half years of President Bush's two terms. The chart is a fascinating look at how congressman have voted during the Bush administration. According to the CQ website, "It is a first-ever look at the way lawmakers voted over an entire presidency. It underscores the high level of Capitol Hill partisanship that has been a hallmark of the period, and shows that while Republican support for President Bush was quite high, Democratic support was almost nonexistent in the House and very limited in the Senate."
Not surprisingly, both Senator Snowe and Senator Collins have the distinction of voting against the President more than any other Republican in the Senate.
Senator Snowe comes in at 73% in her support of the President. That puts her at the bottom of the list of Republicans, and she is followed closely by Senator Collins who comes in at 77%. To put that in perspective, Ben Nelson, a democratic from Florida, supported the president 71% of the time, while Bernie Sanders, from Vermont registered the least support for the president at 23%.
They also do a ranking of "Party Unity" which looks at all roll-call votes where an absolute majority of one party voted against an absolute majority of the other party. Again, Snowe brings up the rear for Republicans at only 59% with Senator Collins a close second at 64%. Florida Democrat Ben Nelson from has the lowest party unity score at 56%
Overall the Senate was significantly more bipartisan than the US House scores, which will be coming up later.