Heh:

Romney turns Santorum’s 2008 endorsement against him

It may just turn out that Mitt Romney’s most important endorsement in his battle against Rick Santorum for the Michigan primary isn’t Gov. Rick Snyder, or any of the host of legislators or local luminaries who’ve backed his candidacy this cycle, but instead Santorum himself - who supported Romney in 2008.

Saturday, before more than a thousand attendees of a conservative conference, Romney used Santorum’s 2008 endorsement as a pivot, around which he turned from explaining his own vision to throwing a verbal haymaker at Santorum, who earlier Saturday at the same event called for the party to nominate a “consistent conservative” to take on Barack Obama.
“I can attest to my conservative credentials by quoting someone who endorsed me in 2008 campaign. Senator Santorum was kind enough to say on the Laura Ingraham show, he said, Mitt Romney, this is the guy who is really conservative and who we can trust. And when he came out and endorsed me he said these words: He said he is the clear, conservative candidate.” Romney said. “He’s right, I’m the conservative candidate and what we need in the White House is principled, conservative leadership and I’ll bring it.”