Bush weighs in

Bush attacks Obama

And this morning on Fox, President Bush himself echoed the attack, adding the (also familiar) hint that we don't know enough about Obama.

"I certainly don't know what he believes in. The only foreign policy thing I remember he said was he's going to attack Pakistan and embrace Ahmadinejad," Bush said.

Of course, attacks from the other party can elevate a candidate in a primary, and Obama eagerly engaged, sending Bush's words to reporters with a rejoinder.

"Of course President Bush would attack the one candidate in this race who opposed his disastrous war in Iraq from the start. But Barack Obama doesn't need any foreign policy advice from the architect of the worst foreign policy decision in a generation," said Obama spokesman Bill Burton.