As Donald Trump brings new media attention to the birther movement, the White House is keeping mum—but Joe Biden’s daughter isn't. Ashley Biden slammed Trump on Facebook last night, saying he "makes me ill...bring it on!" She added that “this discussion or debate over whether or not President Obama has an American birth certificate is just so insulting!” And, later: “Boycotting the Apprentice!” A rep for the vice president refused comment, Politico reports. (Click for the latest on Trump, who has operatives in Hawaii probing Obama's birth.)