This week Mitt Romney won the endorsements of Rep. Paul Ryan, Sen. Marco Rubio, and former President George H.W. Bush. But which of these endorsements will actually help Romney win the election?

The Ryan endorsement, for instance, serves as an important bellwether of possible conservative support for Romney, but it might also hurt him in the general election because of Ryan's controversial budget. Democrats greeted the news with a song linking Romney and Ryan's austere bill to the tune of "That's Amore."

The Bush endorsement, on the other hand, might sow distrust in the powerful conservative grassroots that Romney represents more of the same. Probably by design, these endorsements occur simultaneously, serving to balance each other out.

Today we're wondering which endorsement Romney needs more: Rubio, Ryan, or Bush. Which endorsement helped Romney the most? Vote now on Facebook!