A Florida judge was holding a hearing on a bid by former US president Donald Trump to dismiss the charges he faces for allegedly mishandling classified documents.
The hearing is being held in Fort Pierce, Florida, before District Judge Aileen Cannon, who has already indefinitely postponed Mr Trump's criminal trial in that case.
Donald Trump, who is seeking to recapture the White House in November, and a co-defendant, his valet Walt Nauta, have filed separate motions with Judge Cannon seeking to have the case thrown out.
Mr Trump pleaded not guilty in Florida in June to the federal charges of unlawfully retaining national defence information, conspiracy to obstruct justice and making false statements.
He kept the classified files - which included records from the Pentagon, CIA and National Security Agency - unsecured at his Mar-a-Lago home in Florida and thwarted official efforts to retrieve them, according to the indictment.
Mr Trump, who is currently on trial in New York accused in a separate case of falsifying business records to pay hush money to an adult film actress, is not expected to attend the proceedings today.
The dismissal motion to be heard is the latest of several that Mr Trump's lawyers have unsuccessfully filed with Judge Cannon in a bid to have the charges tossed out.
The hearing is the first in the case since Judge Cannon on 7 May, indefinitely postponed Mr Trump's trial, which had been scheduled to begin this month.
Judge Cannon, a Trump appointee, said the planned 20 May start date was not possible because of the number of pre-trial motions before the court.
The postponement was a major setback for special counsel Jack Smith, who brought the charges against Mr Trump, and makes it unlikely the case will be heard before the presidential election, which is now less than six months away.
Mr Trump's attorneys have sought to delay his various criminal cases until after the election, when Mr Trump could potentially have the federal charges against him dropped if he wins.
In addition to the New York and Florida cases, Mr Trump has also been charged in Washington and Georgia with trying to overturn the results of the 2020 election won by Democrat Joe Biden, his likely November opponent.
