Tepid Romney endorsements: the bracket

Last Wednesday, tea party-backed Florida Senator Marco Rubio broke his vow of primary neutrality to endorse Mitt Romney, saying on Fox News that the former governor has "earned" the nomination.

But in an interview the next day with the Daily Caller, Rubio did not exactly ooze enthusiasm when explaining his choice. "There are a lot of other people out there that some of us wish had run for president—but they didn't. I think Mitt Romney would be a fine president, and he'd be way better than the guy who's there right now," he said.

Politics is full of marriages of convenience and passionless embraces, but most pols at least fake it. (Think Hillary Clinton saying she would "work [her] heart out" to get Barack Obama elected when finally conceding their ugly primary battle.) But Romney seems to have attracted something of a collection of bloodless, tepid endorsements this bruising primary season.

To be sure, lots of people have endorsed Romney enthusiastically, including Donald Trump (who practically glowed at their Las Vegas press conference, calling it a "real honor" and a "privilege" to support him), former New Hampshire John Sununu, and George H.W. Bush. Tea party favorite Sen. Jim DeMint, who is remaining neutral during the primary, has sounded more enthusiastic about Romney than some who have actually endorsed him, saying he's "excited" by him.

Below, we've listed eight of the most tepid declarations of support for Romney, and in honor of this weekend's basketball Final Four championship, we want you, the reader, to help us pick a winner.

More popular Yahoo! News stories:

• Mitt Romney's staff played an epic April Fools' Day joke on their boss

• Romney predicts victory in Wisconsin

• Santorum's Wisconsin primary gamble: A win could stretch campaign into spring