“I’d love to be able to get one-on-one with Gov. Romney and expose the record that would be the weakest record we could possibly put up against Barack Obama,” said Santorum. “We can’t nominate such a weak candidate.”

Santorum lashed out at Romney for “hiding” behind billionaires and for his similarities to President Obama.

“The more I look at the record of Gov. Romney and match it up against Barack Obama, I feel like I am doing a training run for the general election,” said Santorum. “The same issues I’m out there campaigning on against Gov. Romney are the same issues I’m going to campaign against Barack Obama on.