White House Press Secretary Sean Spicer said today he's "taken back" by the allegations of a White House cover-up regarding Michael Flynn. 

Rep. Elijah Cummings (D-MD), the top Democrat on the House oversight committee, made the accusation today. 

The Defense Department inspector general has launched a probe into whether President Trump's former national security adviser failed to obtain prior approval for foreign payments he received.

Cummings said new documents show Flynn was warned about the payments in Oct. 2014 and said the White House is trying throw the committee off of the "paper trail."

"I honestly do not understand why the White House is covering up for Michael Flynn," he said.

Spicer said Flynn - who was head of the Defense Intelligence Agency - was already vetted for a security clearance by the Obama administration and his background was checked.

He pointed out that Flynn, who was fired in 2014, still had an "active security clearance" from the Obama administration when he was named national security adviser.

"I was frankly taken aback by [Cummings'] comments. They're not true," he said, adding that the White House referred Cummings to the Defense Department for the relevant documents on Flynn's clearance.

Spicer said the White House has "complied with every document they have looked for" and that the information the committee is seeking is from before Trump took office.

Earlier this week, Cummings and committee chairman Jason Chaffetz (R-UT) said Flynn may have broken the law by accepting payments from Russia and Turkey.

Watch the exchange above and see the reporting of Fox News chief intelligence correspondent Catherine Herridge below. 

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