House Oversight Committee Chairman Darrell Issa (R-CA) is warning HHS Secretary Kathleen Sebelius that she could face a perjury investigation for her Oct. 30 testimony to Congress about problems with the launch of ObamaCare.

In a letter to Sebelius, Issa wrote, "Providing false or misleading testimony to Congress is a serious matter ... Witnesses who purposely give false or misleading testimony during a congressional hearing may be subject to criminal liability."

The statements in question relate to whether the Obama administration was given warnings by an outside contractor about security issues with Healthcare.gov.

(Read the full letter here.)

Rep. Trey Gowdy (R-SC) weighed in on the situation this morning on America's Newsroom. Republicans also want Sebelius to provide documents and notes that could resolve whether she was speaking truthfully before Congress.

"Lying to a television camera or reporter is one thing. Lying to a committee of Congress is actually a crime. No matter how unpopular we are, you still can't lie to a committee of Congress," said Gowdy.

He noted that testimony to Congress by Theresa Fryer, a Centers for Medicare and Medicaid Services official, is in "direct conflict" with what Sebelius testified about the pre-launch testing performed on the ObamaCare enrollment website.

Watch the full interview above.

Rep. Issa was on America's News Headquarters this afternoon. Watch the interview below.