A Barack Obama impersonator was pulled off the stage Saturday at a Republican forum in New Orleans after he made fun of the GOP presidential candidates and joked about Obama's biracial heritage.

Impersonator Reggie Brown drew laughter and applause from the conservative activists at the Republican Leadership Conference when he projected the underwear-clad photo of Anthony Weiner that was the first to surface in the Democratic congressman's sexting scandal that led to his resignation days ago.

He also opened his routine with jokes about Obama's background, including saying, "My mother loved a black man and, no, she was not a Kardashian," and about Black History Month, "Michelle celebrates the full month. I celebrate half."

But the audience became more uncomfortable when Brown started mocking the Republican presidential candidates. Speaking about Newt Gingrich's advisers quitting all together, he said they, quote, "are dropping faster than Anthony Weiner's pants."

Of Tim Pawlenty, he said he missed the conference because, quote, "he's having his foot surgically removed from his mouth."

Brown also joked about Mitt Romney's Mormon faith and polygamy, and Rep. Michele Bachmann's Tea Party support, before organizers cut off his microphone and escorted him off the stage.

The end of Brown's routine before it was cut short:

http://www.youtube.com/watch?v=uHVIsbCHO1A