(NEW YORK) -- Donald Trump on Wednesday pledged $5 million to a charity of President Obama's choice, provided the president makes public his college applications and transcripts and releases his passport history.
Calling the offer a "major announcement," Trump made the call in a video released across his various social media pages Wednesday at 12 p.m. Eastern time.
"I have a deal for the president," Trump said. "If Barack Obama opens up and gives his college records and applications, and passport application and records, I will give to a charity of his choice, a check immediately for $5 million."
Trump, the New York billionaire real estate developer, has needled the president in the past, calling him the "the worst president ever" and briefly threatening to run against him.
"I'm very honored to have got him to release his long-form birth certificate, or whatever it may be," Trump said in the video. Since the release of the birth certificate in April 2011, Trump has called on the president to release other personal documents, including his college transcripts.
"President Obama is the least transparent president in the history of this country," Trump said. "We know very little about this president."
When asked about Trump's comments, Obama campaign chief David Plouffe told reporters: "Direct your questions to Boston [Mitt Romney's campaign headquarters], he's Romney's biggest supporter."
Trump had been teeing up this announcement for days, and many hoped for a game-changing October surprise.
Liberals were also hoping for a late-breaking smear on Mitt Romney that would alter a neck-and-neck race for the White House, but that also fell flat Wednesday.
A Massachusetts judge will hold another hearing Thursday before deciding whether to unseal testimony Romney gave in a 1990s divorce case. Some people have accused Romney of lying under oath so a friend and political backer, Staples founder Tom Stemberg, would not have to pay off his wife.
Calls to Romney's attorney were not immediately returned.
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