Billionaire businessman Donald Trump, who staged a weeks-long public campaign questioning Barack Obama's eligibility to be president during March and April – and rose to the top of the pool of potential candidates for the 2012 GOP nomination then as a result – says he believes the "birth certificate" released by the White House is forged.... Trump said his period of almost-complete silence on the issue following the release by the White House on April 27 of the image of a "Certificate of Live Birth" from the state of Hawaii was not because he was satisfied with the document.... During...