The FBI was not forthcoming with the Trump, Biden and Pence classified documents during a House Intelligence Committee briefing last week, and lawmakers still don't know exactly what the documents contained, the committee’s leaders, Reps. Mike Turner and Jim Himes, said Sunday.

Turner, R-Ohio, and Himes, D-Conn., appeared together on NBC’s "Meet the Press," where they said there were still unanswered questions regarding the classified documents discovered at the residences of President Biden, former President Donald Trump and former Vice President Mike Pence.

"The FBI is not being forthcoming," committee Chairman Turner said. "They are not giving us the information. They’re claiming it’s going to affect the outcome of their investigation, which, of course, it can’t because the people who are the targets of their investigation know what are in those documents."

The lawmakers said the committee still does not know the classification level of each document or who had access to them. Despite these lingering questions, Turner said the committee is starting to "build an understanding."

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"The thing that we know is that it's unbelievable that administration after administration is apparently sloppy and messy in their use of classified documents," the congressman said. "And that's one thing on a bipartisan basis we have to address."

Himes, the committee's ranking member, agreed that both lawmakers were left dissatisfied with the amount of information provided to the committee during the FBI briefing.

"Let's just say that neither one of us are satisfied that we got enough information to execute our primary responsibility of making sure that sources and methods have been protected," Himes said.

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While the lawmakers said they still couldn’t discuss details of the briefing, Himes said they were beginning to get "a flavor" of what the documents contained and that it "is a very serious issue."

"This wasn't stuff that we can say clearly does not matter," he said.

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When asked if the intelligence community no longer trusts Congress, Turner said it's "more of a tension between the FBI and Congress," not the broader intelligence community.

"I think that's going to come to a head over the next couple of years," he said, adding that the FBI is "not special." 

"They don't have greater privileges than the president does," Turner continued. "And [the FBI is] continuing to act as if they have some privilege to operate without congressional oversight."

House Minority Leader Hakeem Jeffries, D-N.Y., was grilled by CNN on whether President Biden pulled "the rug out" from House progressives when he said he wouldn’t support Washington, D.C.'s revised criminal code, and he suggested the president could reverse his position again.

Biden infuriated some House Democrats on Thursday when he announced he would not veto a bipartisan resolution that would overturn sweeping criminal justice reform legislation passed by the Washington, D.C., Council in November.

CNN’s Dana Bash asked Jeffries on Sunday whether Biden pulled "the rug out from under you and your fellow House Democrats."

"Not at all," Jeffries responded. "We have the House, we have the Senate, and then we have the White House. In terms of my particular reasons for voting the way that I did – one, I believe that local government should have control over local matters and that's a principle that I've supported from the moment that I arrived in Washington, D.C. It's one of the reasons why I believe in D.C. statehood."

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"Right," Bash replied, "but the Democratic president has signaled that he doesn't agree with that, and he's going to sign a Republican bill to override what you just described. Are you OK with that?"

"Well, let's take it one step at a time," Jeffries said. "I haven't had an opportunity to talk to the White House yet about the president's views, so I'm not going to characterize his position one way or the other until we've had a chance to talk about that issue."

"Well, he said it," Bash fired back. "I mean, he's made it clear, unless he changes his tune again." 

"Well, there are public conversations and there are private conversations," Jeffries said. 

The minority leader said regardless of the outcome, Democrats remain united on "the big picture issues."

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Bash still wasn’t convinced, and she pressed Jeffries again.

"OK, you're the Democratic leader," she said. "I, obviously, am not. If I'm hearing from frustrated House Democrats, I can't imagine what you're hearing. They feel like the White House, again, pulled the rug out from under them. You have to be hearing that."

"Well, that actually has not been the sense that I've gotten," Jeffries responded. "When we talk about putting people over politics, that is not just a slogan, it's a way of life for us. It's what we've done." 

White House press secretary Karine Jean-Pierre on Friday pushed back on Democratic critics of Biden's decision not to support Washington, D.C.'s revised criminal code, arguing that a Statement of Administration Policy (SAP) issued by the Executive Office of the President on Feb. 6 specifically opposed to the House resolution disapproving of D.C.'s revised criminal code was not a promise that Biden would veto the legislation.

"The way that it's laid out speaks to the president supporting D.C. statehood," Jean-Pierre told reporters. "We never laid out where we, where the president was going to go once that, once it came to his desk because we wanted to allow Congress to move forward in the way that they normally do."

Reporters at the press briefing seemed confused by the press secretary's explanation. The policy statement released by the White House states, "While we work towards making Washington, D.C., the 51st state of our Union, Congress should respect the District of Columbia's autonomy to govern its own local affairs." 

The plain language of the administration's policy suggested that Biden would oppose a Republican-led effort to overturn D.C.'s criminal code – which was passed by the D.C. Council in January, overriding a veto from Mayor Muriel Bowser. Opponents of the measure in Congress called it a soft-on-crime bill, pointing to reduced criminal penalties for homicides, armed robberies and other violent offenses. 

However, Biden shocked pro-criminal justice reform Democrats on Thursday by suddenly announcing he would not veto the congressional resolution to block D.C.'s crime code if it reached his desk.

"I support D.C. Statehood and home-rule – but I don’t support some of the changes D.C. Council put forward over the Mayor’s objections – such as lowering penalties for carjackings," Biden tweeted Thursday. "If the Senate votes to overturn what D.C. Council did – I’ll sign it."

House Delegate Eleanor Holmes Norton, D-D.C., told Fox News on Friday that Biden's decision was a "great disappointment."

"I had hoped that perhaps this disapproval resolution on the criminal code would be in line with his usual support for what the district does," Norton said. She called the president's announcement "an anomaly," and said rising crime made it difficult for Democrats to support criminal justice reform. 

Fox News’ Chris Pandolfo contributed to this report.