It is DeWine indeed.
http://www.buzzfeed.com/zekejmiller/ohio-ag-to-withdraw-romney-endorsement-will-backOhio Attorney General Mike DeWine will endorse Rick Santorum this afternoon, Ohio Republicans confirm.
DeWine, a Romney endorser, will announce his decision to change endorsements in remarks at the Ohio State House in Columbus, OH. Santorum is currently leading Romney in the state, 42 percent to 24 percent in the latest Rasmussen poll.
A senior Romney aide said DeWine was upset that Romney was critical of Santorum's position on the felon voting bill, which is mentioned in an ad by Romney's Super PAC and was brought up in a debate last month. DeWine and Santorum were two of only three Republican Senators who voted for the bill.