Former US president Donald Trump has pleaded not guilty to a Georgia criminal indictment accusing him of trying to overturn his 2020 election defeat and asked to be tried separately from some of his 18 co-defendants.

Fulton County indicted Mr Trump in August on 13 felony counts, including racketeering, for pressuring state officials to reverse his 2020 election loss in the state and allegedly setting up a fake slate of electors to undermine the congressional certification of Democratic President Joe Biden’s victory.

“As evidenced by my signature below, I do hereby waive formal arraignment and enter my plea of NOT GUILTY to the Indictment in this case,” Mr Trump said in a court filing in Fulton County Superior Court on Thursday (local time).

The plea means that Mr Trump, the frontrunner for the 2024 Republican nomination, will not appear in person in court next week to face the charges.

His lawyers also asked the judge to sever his case from some of his co-defendants who have sought a speedy trial in the case.

This would put Mr Trump’s case on a different schedule from that of his co-defendant, Kenneth Chesebro, a lawyer for Mr Trump’s 2020 campaign who is set to go to trial beginning in October.

Mr Trump’s lawyers argued that they did not have sufficient time to prepare for the October trial date set for Mr Chesebro.

Some of Mr Trump’s co-defendants in Georgia, including lawyer Sidney Powell, Trevian Kutti and Ray Smith, have also waived formal arraignment and entered not guilty pleas.

Latest of four indictments

The 98-page Georgia indictment filed in mid-August charges Mr Trump and 18 other defendants with 41 criminal counts.

Mr Trump also faces a New York state trial in March involving a hush money payment to a porn star and a federal trial in May in Florida for allegedly mishandling federal classified documents.

Another indictment, in Washington DC federal court, accuses him of illegally seeking to overturn his 2020 election defeat.

Mr Trump is due to stand trial in March 2024 for that case, one day before Republican voters in more than a dozen US states decide whether to give him a chance to recapture the White House.

Mr Trump has pleaded not guilty in all criminal cases and could spend much of next year in court, even as he campaigns to retake the White House.

-AAP