Trump has been charged along with two aides with illegally storing troves of classified documents at his personal residence and lying to federal investigators who sought to retrieve them.

This raises the total brought by special counsel Jack Smith in the case to 40.

The US government accuses Trump of violating the Espionage Act and other laws when he removed classified documents upon leaving office in 2021 and failed to give them up to the National Archives.

He has vowed to stay in the race regardless of the outcome of the case – touching off a White House campaign that, for the first time in US history, pits a legal battle against an electoral one.

It is the biggest such breach since the 2013 dump of National Security Agency documents by Edward Snowden and raises tough questions over the access of junior staffers to high-level secrets.

The breach appears to include assessments and secret intelligence reports that touch not only on Ukraine and Russia but also highly sensitive analyses of US allies.

Netanyahu's overhaul plan has sparked unprecedented public anger since his coalition of hard-right and religious parties came to power late last year, and has also caused alarm among Israel's Western allies.

The classified material was identified by personal attorneys for Biden on Nov 2, days before the midterm elections, Richard Sauber, special counsel to the president, said in a statement.

The FBI recovered more than 11,000 government documents and photographs during its Aug 8 search at Trump's Mar-a-Lago estate, according to court records.

They are accused of stealing the identities of an infant boy who died in 1967 and a baby girl who died in 1968, according to a complaint filed in Hawaii federal court.