Update (3:22 p.m. EST): DeWine, as expected, endorses Santorum. DeWine says "To be frank, I've had some sleepless nights. I could not, in good conscience, be on record endorsing Governor Romney when I knew in my heart that Rick Santorum was the better candidate." Keeping with Santorum's anti-negative ads meme, the Ohio attorney general says, "To be elected President, you have to do more than tear down your opponents." In a real zinger, DeWine said Romney has an "astounding inability to provide voters with a rationale to support him." Also: Santorum "is human."
Back in October, DeWine said "I stand with Mitt Romney." He seemed to think Romney could do more than tear down his opponents in the fall. "s a businessman, Mitt Romney understands what it takes to create and maintain jobs. He will fight government bureaucracy, streamline the federal tax code, roll back any unneeded regulation, and do everything in his power to ensure that America is as jobs friendly as possible," DeWine wrote.
DeWine and Santorum have a lot in common: They're both Catholics with big families, they're both from the Rust Belt, and they both got destroyed in their 2006 Senate races. Santorum lost his seat by 18 percentage points; DeWine lost his by 12.