He ran for president last year as a “maverick” Republican and had a high-profile meeting with Barack Obama after the election, but Arizona Sen. John McCain has been a staunch Republican vote since failing to win the White House.
In fact, McCain is siding with his party this year on closely divided votes with greater frequency than at any other period in his 23-year Senate career, according to a CQ analysis of Senate votes. […]
McCain’s year-to-date 2009 party unity score is the 14th highest among the 40 Republican senators. It’s even higher than that of the Senate’s top two Republicans, Minority Leader Mitch McConnell of Kentucky (94.0 percent) and Minority Whip Jon Kyl , also of Arizona (94.5 percent).
McCain has participated in 196 of 199 Senate party unity votes, siding with the majority Republican position on all but nine of those votes. Like most Republicans, McCain voted “no” on the economic stimulus law and on Obama’s nomination of Sonia Sotomayor to the Supreme Court. […]
In 2001, the year after he lost the Republican presidential nomination to George W. Bush , McCain’s 67 percent party unity score was among the lowest in the Senate GOP Conference.
Funny, isn't it, how his "party unity score" was at its lowest after losing to Bush, and at its highest after losing to Obama? One might almost think it was more about being a sore loser than about principle.