Headlining a fundraiser for Senate Majority Leader Harry Reid in Las Vegas on Thursday, President Barack Obama knocked Republican Sharron Angle as "someone who favors an approach that's even more extreme than the Republicans we've got in Washington."

"I mean, she wants to phase out and privatize Social Security and Medicare," Obama said.

The president also linked Angle to Rep. Joe Barton (R-Texas), who called the administration's treatment of BP in the wake of the Gulf of Mexico oil spill a shakedown.

"But Harry’s opponent, she agreed with this guy," Obama said. "She called the compensation we're providing a slush fund."

On Thursday, Angle walked those comments back. In a statement, Angle said she shouldn't have used the term "slush fund" and called the BP compensation fund "an important first step."

The estimated crowd of 3,000 responded to the criticism of Angle with cheers. Attendees were heard at times shouting that Angle is an "idiot" and a "lunatic."

Reid's campaign expected the event to raise some $800,000 for his reelection campaign.

Thursday night's fundraiser for Reid was the president's third of the day. He'd headlined two events in Missouri earlier for the Senate campaign of Secretary of State Robin Carnahan (D).