From Fox News, of course:

Former President George W. Bush said Tuesday he is supporting Republican Mitt Romney's run for the White House.

"I'm for Mitt Romney," Bush told ABC News after he delivered a speech on human rights in Washington, D.C.

I don't suppose it should be any surprise that George W. Bush is endorsing Romney. Romney's team is lousy with former Bush aides and employees. His policy advisers are primarily from the Bush White House, his campaign is made up of Bush cronies, and his policies are all George W. Bush policies with a patina of teabagginess slopped over the top. Bush's endorsement is just the blood-red, oozing cherry perched at the top of the shit sundae.