Donald Trump has broadened his criticism of President Barack Obama.
Not only does the real estate mogul question Obama's birth certificate and thus his U.S. citizenship, Trump says the President is an intellectual lightweight.
In an interview Monday, Trump called Obama "a poor student" who did not deserve to be admitted to the prestigious Ivy League universities he attended.
Trump, mulling a bid for the GOP presidential nomination, offered no proof of this but said he would continue pressing it - and the birth certificate talk.
"I heard he was a terrible student, terrible. How does a bad student go to Columbia and then Harvard?" Trump said in an interview with The Associated Press.
"I'm thinking about it, I'm looking into it. Let him show his records."
Obama graduated from Columbia University in New York in 1983 with a degree in political science after transferring from Occidental College in California.
Barack went on to Harvard Law School, where he graduated magna cum laude 1991 and was also the first black president of the Harvard Law Review.Obama's campaign did not release his college transcripts, and in his memoir, Dreams From My Father, Obama indicated he wasn't always an academic star.
Trump posited in the interview that Obama's refusal to release his college grades were part of a larger pattern of concealing information about himself.
"I have friends who have smart sons with great marks, great boards, great everything and they can't get into Harvard," Trump said. "We don't know a thing about this guy. A lot of questions are unanswered about our president."
A spokeswoman for Obama's re-election campaign declined to comment.
The reality star, who mentioned his potential bid on Celebrity Apprentice this week, has been calling for Obama to release his long form birth certificate.
The State of Hawaii has released a certificate of live birth indicating Obama was born there on August 4, 1961, but that has not quelled "birther" critics.
The controversy has dominated the early stage of the 2012 GOP nominating contest, with Trump leading the charge and benefiting in Republican polls.
"I have more people that are excited that I reinvigorated this," Trump said, adding "the last guy (Obama) wants to run against is Donald Trump."
Trump is scheduled to travel to the early primary states of New Hampshire and Nevada this week and will make a final decision about a bid by June.
What do you think? Should Trump run?
Are these claims by Trump racist?