If Christopher Buckley does end up voting for Obama, he'll have flipped a bit in this election cycle too. In February, he took to the pages of the New York Times to defend John McCain from conservative critics. Specifically, Buckley said:

It may strike some conservatives today as odd, if not absurd, to see John McCain being subjected to an auto-da-fé conducted by such Torquemadas of the right as Rush Limbaugh, Ann Coulter, Sean Hannity. The other day, he even endured jeers at a conservative gathering in Washington, by otherwise well-behaved exemplars of conservatism. Indeed, turn on the TV at any hour of the day and you’ll find Mr. McCain being excoriated in harsher terms than he endured from his jailers at the Hanoi Hilton — variously denounced as a) ...