Two top House lawmakers sent a three-page letter Saturday to the director of national intelligence asking for an "immediate review and damage assessment" to national security stemming from reports that "highly classified documents" were recovered from Trump's Mar-a-Lago estate.

Rep. Adam Schiff, D-Calif., the chair of the House Intelligence Committee, and Rep. Carolyn Maloney, D-N.Y., chair of the House Oversight Committee, wrote to National Intelligence Director Avril Haines that "Trump's conduct has potentially put our national security at grave risk" and that the issue "demands a full review."

Referring to Washington Post reporting that the FBI was seeking in part material "relating to nuclear weapons," they said, "It is hard to overstate the national security danger that could emanate from the reckless decision to remove and retain this material."

They also asked for a classified briefing "as soon as possible."

-ABC News' Justin Gomez

A lawyer for Trump signed a statement in June that all classified documents at Mar-a-Lago had been turned over to federal investigators, sources familiar with the matter told ABC News.

The signed declaration came following the June visit by federal agents in search of additional materials that Trump was believed to have failed to turn over to the National Archives. During that visit, as ABC News has previously reported, Trump stopped by and greeted the agents. Two lawyers representing Trump were present during that visit, sources have said.

There was also a second subpoena that Trump complied with seeking security footage of the Mar-a-Lago club towards the end of June, sources told ABC News.

The New York Times was the first to report these details.

The Justice Department declined to comment.

In a receipt showing property that was seized from Trump's estate, agents noted they recovered 11 sets of documents of various classifications ranging from confidential to top secret and sensitive compartmented information.

-ABC News' John Santucci, Katherine Faulders and Alexander Mallin

The Trump team has said that the documents seized from Mar-a-Lago in this week's FBI raid were declassified. But whether or not they were classified may not matter for two of the criminal statutes cited in the warrant, according to ABC News chief legal analyst Dan Abrams.

"As I look at these statutes, I'm focused less on the question that the Trump team has been talking about, which is the classification of the documents -- which is obviously very important in a macro picture -- but in a strictly legal sense, [for] two of these three statutes, that may not even be the critical question," Abrams told ABC's David Muir in a special report on Friday following the release of the search warrant.

One of the statutes, 18 USC 1519, relates to the destruction, alteration or falsification of records.

"That is the statute I am singularly most interested in here," Abrams said.

The search of the Mar-a-Lago estate was for classified documents, according to the warrant.

Republican members of the House Intelligence Committee defended former President Donald Trump while attacking the integrity of the Department of Justice and the FBI during a press conference on Capitol Hill Friday.

"President Donald Trump is Joe Biden's most likeliest political opponent in 2024 and this is less than 100 days from critical midterm elections," Rep. Elise Stefanik, the No. 3 House Republican, said. "The FBI raid of President Trump is a complete abuse and overreach of its authority."

Intelligence Committee Ranking Member Michael Turner, R-Ohio, told reporters that Republicans on the committee are "glad" the Department of Justice has begun the process of releasing "some" of the information about the raid to the public, but called for more. Turner said committee Republicans want access to the affidavit outlining the "imminent security threat" justifying the raid.

"Our request remains that the director of the FBI and the attorney general disclose to this committee the imminent national security threat upon which they based their decision to order a raid on the president's home, again underscoring that there were many other options available to them," Turner claimed. "We believe after the release today that these questions will remain unanswered."

"The real story will be with the release of the affidavit itself," Rep. Brian Fitzpatrick, R-Pa., added. "The bureau and the attorney general and the DOJ obviously made the decision that this extreme measure was necessary. We will await their rationale for why that extreme measure was justified and not some lesser intrusive means."

Turner did not call for the public disclosure of the underlying affidavit, which is expected to remain under seal, but did say that members of the intelligence committee and other committees of jurisdiction should have access. He called on committee Democrats to support a subpoena for this affidavit if there is non-compliance.

House Minority Leader Kevin McCarthy dodged ABC News’ questions about whether he supports the release of the warrant authorizing the raid, instead saying he'd like to see the subpoena against Trump.

Trump received a subpoena in the spring for documents that he did not return to the National Archives, ABC News has reported. It's unclear to what extent, if at all, he complied. The Justice Department has not publicly confirmed the existence of a subpoena.

Stefanik promised a "fulsome investigation" if Republicans retake the gavel in November.

"House Republicans are committed to immediate oversight, accountability and a fulsome investigation to provide needed transparency and answers to the American people," Stefanik said.

The group also emphasized that they're in "full support" of those who serve in the FBI and law enforcement agencies and condemned any violence against agents, while also repeatedly calling into question the credibility of law enforcement.

-ABC News’ Allie Pecorin and Katherine Faulders