Romney wins Iowa by 8 votes. He got 25 percent of the vote. Which means GOP voters want anyone other than Romney by a margin of 3-1.

THE FALLOUT BEGINS: Michelle Bachman calls it a day, although she’s late to her own press conference.

THE KNIVES COME OUT FOR SANTORUM: As they would for any GOP candidate. But Santorum is going to be called out on things that, while annoying to libertarians, aren’t necessarily turnoffs for conservatives or independents. The same is not true for Ron Paul.