In fact, his grandmother is on the record as saying exactly the opposite, that he was born "In the state of Hawaii, where his father, his father was also learning there. The state of Hawaii."
Of course sometimes the conspiracies stick, other times they don't: Despite myriad questions raised about Obama - including the country of his birth, his alleged Muslim faith, and even his status as the Antichrist – he was re-elected.
Trading in political rumors is one thing, but perhaps more alarmingly,Trump has also endorsed discredited, anti-science conspiracy theories, including that childhood vaccines cause autism.
The Populist Appeal of Conspiracies Why does Trump regularly use conspiracies in his rhetoric? Quite simply, it works. Controversial and inflammatory statements - whether true or even plausible - are guaranteed to get the attention of news media and keep Trump's face in front of voters.
As The New York Times noted: "It is not a total surprise that Mr. Trump is the candidate most likely to use the phrase ‘I hear' before stating something as fact, no matter how flimsy the information he passes along. A man who reveled in his presence in the New York tabloid pages for decades, he saw firsthand the power of stories, especially those that shock people, to command attention."