During a Sunday night fundraiser in La Jolla, California, President Obama called out Rep. Darrell Issa (R-CA) for once calling him corrupt, but now boasting in campaign materials that he sponsored legislation later signed by the President.

Issa, who is locked in a tough re-election fight against Democratic challenger retired Marine Col. Doug Applegate, recently sent out campaign mailers noting that President Obama signed the Survivors’ Bill of Rights, which Issa co-sponsored. This comes after the Republican congressman and former chair of the House Oversight Committee called the Obama White House “one of the most corrupt administrations” in 2011.

Obama pointed this out Sunday night at the fundraiser for the Democratic Congressional Campaign Committee.

“That is the definition of chutzpah,” Obama said, adding that Issa’s mailers were “shameless,” according to Politico.

The President said that Issa’s “primary contribution to the United States Congress has been to obstruct and to waste taxpayer dollar on trumped-up investigations that have led nowhere” and that the Republican congressman is “not somebody who’s serious about working on problems,” according to Politico.

Obama also said that several Republicans openly criticize him and then attend the White House Christmas party.

“Some of them say, ‘I’m praying for you,’” he said, per Politico. “And I don’t question the sincerity that they are praying for me: ‘Please change this man from the socialist Muslim that he is.”

“I’m sure it’s more sincere than that,” he added.