The Obama campaign has had enough of Donald Trump and his birther nonsense. The President's campaign spokesman, Ben LaBolt, called on Mitt Romney to ditch the Donald once and for all. "Donald Trump has become the birther in chief," said LaBolt. "I can put the president's birth certificate on my forehead and Mr. Trump wouldn't accept that the president was born in the United States. And it raises a question that's come up before during this campaign as to whether Governor Romney will embrace the extreme voices in his party or stand up to them."