During her modeling career, Cindy Crawford was skilled at switching outfits. Now, she’s switching presidential candidates, it seems. Eric Fehrnstrom, a spokesman for Mitt Romney, took to Twitter Monday to oh-so-subtly boast that Team Romney has a new backer in its corner: Cindy Crawford. “Cindy Crawford appears in a demonstration video at Romney call day to show people how to use ComMitt fundraising software,” wrote Fehrnstrom. But it wasn’t that long ago — 2008, in fact, — when Crawford could be seen pulling for then-Sen. Barack Obama in support of his presidential aspirations. Fehrnstrom was referring to an event held...