Real estate developer Trump and his wife Mela
Real estate developer Trump and his wife MelaReuters

Billionaire Donald Trump said on Fox News that he will deliver a bombshell on President Barack Obama on Wednesday, but he refused to reveal details. He assured viewers the news could change the outcome of the presidential election.

Trump has endorsed Mitt Romney after having considered running for president, and he has been one of the most vocal Americans doubting that President Obama was born in the United States, a condition for being president.

The real estate magnate phoned in the news to “Fox and Friends” and said he has "something very, very big concerning the president of the United States. It's going to be very big. I know one thing; you will cover it in a big fashion."

Trump wrote on Twitter, "Stay tuned for my big Obama announcement,” and then sent another tweet, "Just wait and see!"

"It's very big. Bigger than anybody would know.”

Fox asked Trump if the news is personal or if it reflects his capacity to govern, and he answered, “It’s all in one.”

He said he will make his announcement around noon Wednesday, and American media undoubtedly will be on edge, not to mention Obama’s campaign team.

One offbeat website suggested tongue-in-check that its “analysts” discovered that the source of the news is that Trump, during a visit to his hair doctor, “Dr. Heywood Jablome," saw a file on Obama at the hair doctor, an indication that the president is bald.