A panel of 12 Manhattan jurors unanimously convicted him on 34 counts of falsifying business records on Thursday, with sentencing now set for 11 July.
Over a six-week trial, the court heard from 22 witnesses, including Stormy Daniels, whose alleged sexual encounter with the former president was at the centre of the case.
Trump, 77, called the verdict a "disgrace", adding: "We'll fight to the end."
The former president was accused of having concealed a payment to buy the silence of Ms Daniels, a former adult-film star, in the final days of his 2016 election campaign.
Prosecutors had argued that, by approving a scheme to disguise the money as legal expenses, Trump broke election law.
His sentencing will come just days before the start of the Republican National Convention, when he is due to be confirmed as the party's candidate to face Joe Biden, the Democratic incumbent, in November.
While he could in theory face prison, a financial penalty is seen as the more likely punishment. For now, Trump has been released without having to pay bail.
The former president pursed his lips and turned to look at the jurors as they delivered their guilty verdicts, which came after two days of deliberations.
Amid a massive police presence outside court afterwards, Trump said: "This was a disgrace. This was a rigged trial by a conflicted judge who was corrupt."
He added that the “real verdict" was "going to be 5 November by the people" and that "this is long from over".
As he spoke, hundreds of onlookers gathered and a helicopter circled overhead.
He was expected to speak again to media in front of Trump Tower in New York City on Friday morning.
MNA/PR
Your Comment