Donald Trump has arrived at the Manhattan court where in about 30 minutes Judge Juan Merchan will read the 34 charges for the Stormy Daniels case. Initially, the former president will be fingerprinted, but it is not clear if his arrest photos will be taken or if he will be handcuffed. Meanwhile, hundreds of people have gathered in front of the court.
What happened?
Former President Donald Trump faces criminal charges stemming from allegations that in 2016, he paid to buy the silence of pornographic actress Stormy Daniels.
The first day of the trial is expected to be short – Mr. Trump will be fingerprinted, will learn the full indictment against him and is expected to plead not guilty.
Republican Donald Trump will become the first former US president to face criminal charges.
New York police are bracing for possible protests from Trump supporters who believe the indictments against him are politically motivated and aimed at undermining his bid to return to the White House in 2024.
The 76-year-old former president has fed this belief of his supporters and tried to use this situation to his political advantage, declaring that he has collected $8 million in less than a week from the indictment, which he calls " witch hunt".
In a Manhattan courtroom, prosecutors, led by New York District Attorney Alvin Bragg, a Democrat, will read the indictment handed down last week by a grand jury.
This is when Trump and his defense attorneys will learn the full charges against the former president.
Afterwards, the former president is expected to be released.
The investigations are based on payments made in the final days of his 2016 presidential campaign to pornographic actress Stormy Daniels and former Playboy model Karen McDougal.
Both say they had sex with Mr Trump.
The former president denies having had relations with them, or that he paid to buy their silence.
Although prosecutors repeatedly insist that no person is above the law, filing criminal charges against a former president has logistical difficulties.
The trial in New York will be an important test, as prosecutors in Atlanta and Washington conduct investigations that could lead to new charges against Mr. Trump.
Those investigations relate to his efforts to overturn the results of the 2020 election and the possible misuse of classified documents at Mar-a-Lago.
Republican leaders, including Mr Trump's potential rivals within the party for the 2024 presidential election, have criticized the trial against him.
President Biden, who has not yet declared whether he will run for re-election, and Democratic leaders have not spoken much about the case.
Prosecutors insist the trial against Mr Trump is not about politics.
Mr. Trump is expected to return to his residence at "Mar-a-Lago" in Florida this evening, where he will hold a conference in front of at least 500 of his well-known supporters. Among the guests are some of the most pro-him Republicans in Congress.
The conviction would not prevent Mr Trump from running for or winning the 2024 presidential race.