>From a Congressional Quarterly analysis of their voting records:
http://public.cq.com/docs/cqw/weeklyreport110-000002654703.html
<excerpt>
[T]heir voting records are nearly indistinguishable. Although both have good working relationships with Republicans, Congressional Quarterly's annual vote studies show that Clinton and Obama both had strongly partisan voting records last year. In fact, both of them joined their fellow Democrats in mostly party-line roll calls more often than their own majority leader, Harry Reid of Nevada. In the past year, Clinton voted with her party on 98 percent of the questions that pitted a majority of Democrats against a majority of Republicans, while Obama's score was 97 percent. Reid sided with his party on only 95 percent of those votes.
<snip>
In her seven years in the Senate, Clinton's record of voting with her party has fluctuated from a high of 98 percent in 2003 to a low of 93 percent in 2006, before returning to 98 percent last year. Obama, in his three years, was more consistently partisan: 97 percent in 2005, 96 percent in 2006 and back to 97 percent last year.
<snip>
Obama and Clinton have disagreed with each other on only three of the 38 key votes Congressional Quarterly identifies for each year and on which they both participated. Of those, only one - a 2005 bill limiting class action lawsuits, which Obama supported and Clinton opposed - could be seen as a clear ideological disagreement.
<end excerpt>
Michael