The charges, arising from an investigation led by Democratic Manhattan District Attorney Alvin Bragg, could reshape the 2024 presidential race. Trump previously said he would continue campaigning for the Republican Party’s nomination if charged with a crime.

The specific charges are not yet known and the indictment will likely be announced in the coming days, the New York Times reported. Trump will have to travel to Manhattan for fingerprinting and other processing at that point.

In a statement on Thursday, Trump said he was “completely innocent”.

“This is Political Persecution and Election Interference at the highest level in history,” he said, providing no evidence.

Susan Necheles, a lawyer representing Trump, said she was informed of the indictment but did not know when he would surrender. A law enforcement source, speaking on condition of anonymity, also confirmed the indictment.

Bragg’s office did not immediately respond to requests for comment.

Trump, 76, sought re-election in 2020 but was defeated by Democrat Joe Biden. Trump has falsely claimed he lost to Biden due to widespread voting fraud and has called the investigation that led to his indictment a “political witch hunt”. Bragg’s office last year won the criminal conviction of the businessman-turned-politician’s real estate company.

The Manhattan investigation is one of several legal challenges facing Trump, and the charges could hurt his presidential comeback attempt. Some 44 per cent of Republicans said he should drop out of the race if he is indicted, according to a Reuters/Ipsos poll released last week.

The grand jury convened by Bragg in January began hearing evidence about Trump’s role in the payment to Daniels days before the 2016 presidential election that he ended up winning.

Daniels, a well-known adult film actress and director whose real name is Stephanie Clifford, has said she received the money in exchange for keeping silent about a sexual encounter she had with Trump in 2006.

The former president’s personal lawyer Michael Cohen has said Trump directed hush payments to Daniels and to a second woman, former Playboy model Karen McDougal, who also said she had a sexual relationship with him. Trump has denied having affairs with either woman.

Federal prosecutors examined the Daniels payoff in 2018, leading to a prison sentence for Cohen but no charges against Trump.

No former or sitting US president has ever faced criminal charges. Trump also faces two criminal investigations by a special counsel appointed by US Attorney General Merrick Garland and one by a local prosecutor in Georgia.

Trump, a divisive figure in US politics with support particularly among white blue-collar and conservative Christian voters, served as president from 2017 to 2021, governing as a right-wing populist.

He was impeached twice by the House of Representatives, once in 2019 over his conduct regarding Ukraine and again in 2021 over the attack on the US Capitol by his supporters. He was acquitted by the Senate both times.

Trump on March 18 wrote on social media that he had expected to be arrested on March 21 and urged his supporters to protest to “take our nation back,” reminiscent of his exhortations ahead of the January 6, 2021, attack on the US Capitol.

Trump in 2018 initially disputed knowing anything about the payment to Daniels. He later acknowledged reimbursing Cohen for the payment, which he called a “simple private transaction.”

Daniels has said she had a sexual encounter with Trump at a Lake Tahoe hotel in 2006, the year after he married his current wife Melania and more than a decade before the businessman-turned-politician became president.

The US Supreme Court in 2021 rejected her bid to revive a defamation lawsuit she brought against Trump over a Twitter post in which he accused her of a “con job” after she described being threatened over publicising her account of a sexual relationship with him. Lower courts had thrown out her suit.

Special counsel Jack Smith is separately investigating Trump’s handling of classified government documents after leaving office and his efforts to overturn the results of the 2020 election.