I saw this at Breitbart.com. Donald Trump was on Laura Ingraham's radio show talking about the non-existent birth certificate and Obama just not being qualified for the job of President. He also isn't fond of the Bush Years because he believes they gave us Obama. Here is the show.
http://www.breitbart.tv/trump-proud-to-be-a-birther/
http://www.breitbart.tv/trump-proud-to-be-a-birther/