President Obama brushed off calls for a special independent investigator into the IRS scandal that has engulfed his administration during a press conference this afternoon, saying the internal audit and criminal investigation headed by Attorney General Eric Holder are “sufficient.”

“Between those investigations I think we’re going to be able to figure out exactly what happened,” said Obama. “I think we’re going to be able to fix it.”

The press conference comes after Obama scrambled last night to fend off growing concerns about his administration following the news that the IRS targeted conservative groups. He also has been battling other controversies, including questions about the deadly attacks in Benghazi and the Department of Justice secretly obtaining Associated Press phone records.

Obama also downplayed growing comparisons to his administration and that of former President Richard Nixon, who was brought down by the Watergate scandal.

“I’ll let you guys engage in those comparisons. You can go ahead and read the history I think and draw your own conclusions,” said Obama, who went on to say he “makes no apologies,” for the AP phone records probe.

“Leaks related to national security can put people at risk, they can put men and women in uniform that I’ve sent into the battlefield at risk,” said Obama.

The president also dismissed growing murmurs that Holder may be fired.

“I have complete confidence in Eric Holder,” he said. “He does his job with integrity and I expect he will continue to do so.”

Obama used the press conference to proactively call on Congress to work with him to increase security at U.S. embassies around the world following the deadly attacks in Benghazi.

“I’m calling on Congress to work with us to support and fully fund our budget to increase security at embassies around the world,” he said. “That’s how we learn the lessons of Benghazi.”