Well, that didn't take long. With Chicago Mayor Richard Daley announcing today that he won't seek re-election, the Progressive Change Campaign Committee—which has made no secret of its disdain for Emanuel in the past—is circulating a petition to oppose Emanuel if he runs for mayor. It reads:

"I will not support Rahm Emanuel in any future election for Congress, Mayor of Chicago, Governor, or other office. He sold us out on the public option and is a weak Democrat who caves instead of fighting conservatives and corporate power. We won't forget the choices you've made, Rahm."