Devin Nunes wants AG Jeff Sessions held in contempt of Congress. Here's why.

House Intelligence Committee chairman Devin Nunes (R-Calif.) wants Attorney General Jeff Sessions to be held in contempt of Congress.

The committee is working to determine if the Justice Department and FBI abused the Foreign Intelligence Surveillance Act while investigating the Trump campaign.

Why is he asking for this?

"On Thursday we discovered that they are not going to comply with our subpoena," Nunes said Sunday on  Fox News' “Fox & Friends.”

"The only thing left to do is we have to move quickly to hold the attorney general of the United States in contempt and that is what I will press for this week," he added.

Nunes sent Sessions a classified letter, which he said went unnoticed. Then, Nunes sent him a subpoena.

The Justice Department, meanwhile, has said it did respond to Nunes’ letter, according to a statement reported by Fox News’ “Sunday Morning Futures” program:

The Department has determined that, consistent with applicable law and longstanding Executive Branch policy, it is not in a position to provide information responsive to your request regarding a specific individual," Assistant Attorney General Stephen E. Boyd wrote in a signed letter. "The Department and its intelligence community partners would welcome the opportunity to discuss whether there are other ways to accommodate the House Permanent Select Committee on Intelligence's oversight inquiry.

Nunes told “Fox & Friends” it is possible that Sessions is personally unaware of the subpoena. But he also said he would not accept excuses regarding national security concerns related to the Russia investigation.

Too many times, the same argument has come up during the investigation, Nunes said.

House Majority Whip Steve Scalise (R-La.) told the news program he supports Nunes.

"I have deeper and deeper concerns the more I see some of this, not only the stonewalling, but what’s been in some of these memos," Scalise said. "We’re also trying to get a lot of other information from the Department of Justice about this investigation, and everything that we uncover raises even deeper concerns about the direction."

In the past, Nunes has said the FBI and Justice Department’s redaction of his committee’s Russia report was “excessive and sloppy.”

The committee’s report determined that FBI agents detected no deception during Michael Flynn’s interview.

Flynn, Trump’s former national security adviser, pled guilty to one count of making "false, fictitious or fraudulent" statements to the FBI in special counsel Robert Mueller's Russia investigation.

"This just cannot continue where we don't get information in a timely manner. Like I said, everything we have tried to get they tried to stop us from getting,” Nunes told the news program.