Conservative Libertarian Outpost

Sen. Barack Obama, D-Ill., was the most liberal senator in 2007, according to National Journal’s 27th annual vote ratings. The insurgent presidential candidate shifted further to the left last year in the run-up to the primaries, after ranking as the 16th- and 10th-most-liberal during his first two years in the Senate.

Sen. Hillary Rodham Clinton, D-N.Y., the other front-runner in the Democratic presidential race, also shifted to the left last year. She ranked as the 16th-most-liberal senator in the 2007 ratings, a computer-assisted analysis that used 99 key Senate votes, selected by NJ reporters and editors, to place every senator on a liberal-to-conservative scale in each of three issue categories. In 2006, Clinton was the 32nd-most-liberal senator.

In their yearlong race for the Democratic presidential nomination, Obama and Clinton have had strikingly similar voting records. Of the 267 measures on which both senators cast votes in 2007, the two differed on only 10. “The policy differences between Clinton and Obama are so slight they are almost nonexistent to the average voter,” said Richard Lau, a Rutgers University political scientist.

John McCain, R-Ariz., the only other senator whose presidential candidacy survived the initial round of primaries and caucuses this year, did not vote frequently enough in 2007 to draw a composite score. He missed more than half of the votes in both the economic and foreign-policy categories. On social issues, which include immigration, McCain received a conservative score of 59.