Mike DeWine, Attorney General of Ohio, is switching from Mitt to Rick, and he used to be a Tim supporter, so this is big news:

Republican presidential hopeful Rick Santorum was in line for a key endorsement on Friday from Ohio Attorney General Mike DeWine, who had earlier endorsed Mitt Romney, CNN and The Washington Post reported. The Ohio primary is one of the big prizes on Super Tuesday, March 6.

It will be hard for the Romney campaign to attack DeWine for flip-flopping or changing his mind, because, well you know.