Ninety-nine senators showed up today to vote on a Medicare bill, including Ted Kennedy, who recently had brain surgery and wasn’t scheduled to return to the Senate until September. (Here’s some background on the content of the bill.)

Kennedy’s vote was needed to break a Republican filibuster. Once it was clear Democrats had the 60 votes for cloture, a bunch of Republican senators flipped and voted with Democrats, so the final vote was 69-30.

John McCain was the only senator to skip this vote.

In fact, John McCain has missed more than half the Senate votes this year, including dozens after he had already locked up the GOP nomination.

By the way, the GOP stand on this Medicare bill has caused them to lose a lot of support from doctors and from the American Medical Association, which has traditionally supported Republicans.