WASHINGTON (AP) - President Joe Biden said he was surprised when informed that government records were found by his attorneys at his former office space in Washington. He was asked about the issue after the top Republican on the House Intelligence Committee requested that the U.S. intelligence community conduct a “damage assessment” of potentially classified documents.

Speaking to reporters in Mexico City on Tuesday, Biden said his attorneys “did what they should have done” when they immediately called the National Archives about the discovery at the offices of the Penn Biden Center. He kept an office there after he left the vice presidency in 2017 until shortly before he launched his Democratic presidential campaign in 2019.

The White House confirmed that the Department of Justice was reviewing “a small number of documents with classified markings” found at the office.

“I was briefed about this discovery and surprised to learn that there are any government records that were taken there to that office,” Biden said in his first comments since news of the Nov. 2, 2022, document discovery emerged Monday. He added that “I don’t know what’s in the documents” and that his lawyers had suggested he not ask.

Earlier Tuesday, Rep. Mike Turner sent the request to Director of National Intelligence Avril Haines, saying that Biden’s retention of the documents put him in “potential violation of laws protecting national security, including the Espionage Act and Presidential Records Act.”

Irrespective of a federal review, the revelation that Biden potentially mishandled classified or presidential records could prove to be a political headache for the president, who called former President Donald Trump’s decision to keep hundreds of such records at his private club in Florida “irresponsible.”

“Those entrusted with access to classified information have a duty and an obligation to protect it,” said Turner in a letter to Haines. “This issue demands a full and thorough review.”

On Tuesday, Rep. James Comer, the new GOP chairman of the House Oversight Committee, sent the White House Counsel’s office a letter requesting copies of the documents found at the Biden office, communications about the discovery, and a list of those who may have had access to the office where they were found. The White House didn’t immediately respond to the request.

Haines agreed in September to conduct a “risk assessment” rather than a “damage assessment” of the Trump case.

There are significant differences between the Trump and Biden situations, including the gravity of an ongoing grand jury investigation into the Mar-a-Lago matter. The intelligence risk assessment into the Trump documents is to examine the seized records for classification as well as “the potential risk to national security that would result from the disclosure of the relevant documents.”

Sen. Mark Warner, the Democratic chairman of the Senate Intelligence Committee, called for a briefing on the documents.

“Our system of classification exists in order to protect our most important national security secrets, and we expect to be briefed on what happened both at Mar-a-Lago and at the Biden office as part of our constitutional oversight obligations,” he said. “From what we know so far, the latter is about finding documents with markings, and turning them over, which is certainly different from a months-long effort to retain material actively being sought by the government. But again, that’s why we need to be briefed.”

Special counsel to the president Richard Sauber said Monday that after Biden’s attorneys found the records, they notified the National Archives and Records Administration - which took custody of the documents the next day.

“Since that discovery, the President’s personal attorneys have cooperated with the Archives and the Department of Justice in a process to ensure that any Obama-Biden Administration records are appropriately in the possession of the Archives,” Sauber said.

A person who is familiar with the matter but not authorized to discuss it publicly said Attorney General Merrick Garland asked U.S. Attorney for the Northern District of Illinois John Lausch to review the matter after the Archives referred the issue to the department.

Lausch is one of the few U.S. attorneys to be held over from Trump’s administration.