California Rep. Dana Rohrabacher, medical marijuana champion, facing tough GOP primary challenge

SANTA ANA, Calif.–Rep. Dana Rohrabacher was already having a tough election year. The Orange County Republican has drawn more than a half-dozen Democratic challengers, some of whom have raised more money than the 15-term congressman. Election handicappers declared his race a toss-up, protesters have shown up at his home and district office, and Rohrabacher’s name…