Republican Sens. Marco Rubio and Scott Brown joined John McCain in denouncing the congresswoman's Muslim witch hunt Florida Republican Sen. Marco Rubio, a rising star in the party and a potential vice-presidential pick for Mitt Romney, said this morning that he disagreed with Republican Rep. Michele Bachmann’s baseless call to investigate Muslim Brotherhood infiltration in the U.S. government. Appearing on NPR’s Diane Rehm show, Rubio was asked by a caller if he would join Republican Sen. John McCain’s strong condemnation of the anti-Muslim witch hunt on the Senate floor yesterday. While Rubio said he doesn’t personally know Huma Abedin, a...