Remember early last week when Donald Trump challenged Obama's birth certificate and said that he might be hiding it because he was a Muslim? It raised some eyebrows, looking like pandering move to gain support from the birthers, but it also came off as foolish--especially when Trump couldn't provide a legitimate birth certificate himself. Last night on the O'Reilly Factor, Bill O'Reilly asked Glenn Beck, no stranger to throwing outlandish barbs at Obama himself, what he though of Trump as a candidate. Surprisingly, Beck said that Trump had been making him "a little uncomfortable here recently." The reason: Trump's claim that Obama doesn't have a birth certificate and his statements that he would "pound" China. Granted, these would make plenty of people uncomfortable, but hearing the objection from Beck makes it a little more interesting. Beck followed it up with a call for candidates with substance: "I would hope that we could get serious candidates, who could shake things up by not saying provocative things, just by stating the truth of what's going on."