House Speaker Paul Ryan (R-WI) has made clear he doesn't agree with a proposal put forward by Donald Trump -- whom Ryan has endorsed -- to ban Muslim immigration into the United States, but in an interview with the Huffington Post Thursday, Ryan floated taking a President Trump to court if he tried to implement such a ban or some of his other controversial proposals unilaterally. “I would sue any president that exceeds his or her powers,” Ryan said in a back-and-forth about Trump's claims that he could implement a Muslim ban or build a Mexican border wall without congressional...