The final jurors were seated Friday in Donald Trump’s hush money trial, and an appellate judge rejected the former president’s latest bid to halt the case as a hectic day in court set the stage for opening statements to begin Monday.

The panel of New Yorkers who will decide the first criminal trial of a former U.S. president took final shape after lawyers spent days quizzing dozens of potential jurors on whether they can impartially judge Trump in the city where he built his real estate empire before being elected in 2016.

The trial thrusts Trump’s legal problems into the heart of his hotly contested race against President Joe Biden, with Trump’s opponent likely to seize on unflattering and salacious testimony to make the case that the presumptive Republican nominee is unfit to return as commander in chief.

Trump, meanwhile, is using the prosecution as a political rallying cry, casting himself as a victim while juggling his dual role as criminal defendant and presidential candidate. Judge Juan Merchan said lawyers will present opening statements Monday morning before prosecutors begin laying out their case alleging a scheme to cover up negative stories Trump feared would hurt his 2016 campaign. He has pleaded not guilty and says the stories were false.

Despite the failure of repeated previous attempts to delay the trial, a Trump attorney was in an appeals court hours after the jury was seated, arguing that Merchan rushed through jury selection and that Trump cannot get a fair trial in Manhattan.

Just after the jury was seated, emergency crews responded to a park outside the courthouse, where a man had set himself on fire. The man took out pamphlets espousing conspiracy theories and spread them around the park before dousing himself in a flammable substance and setting himself aflame, officials said. He was in critical condition Friday afternoon.

Trump has spent the week sitting quietly in the courtroom as lawyers pressed potential jurors on their views about him in a search for any bias that would preclude them from hearing the case. During breaks in the proceedings, he has railed against the case on social media or to TV cameras in the hallway, calling it a politically motivated “witch hunt.”

“This Trial is a Long, Rigged, Endurance Contest, dealing with Nasty, Crooked People, who want to DESTROY OUR COUNTRY,” he wrote Friday on social media.

Over five days of jury selection, dozens of people were dismissed from the jury pool after saying they didn’t believe they could be fair. Others expressed anxiety about having to decide such a consequential case with outsized media attention, even though the judge has ruled that jurors’ names will be known only to prosecutors, Trump and their legal teams.