Judge Merchan heard arguments about whether evidence involving the Trump campaign's interactions with the National Enquirer and Trump's alleged affair with former Playboy model Karen McDougal should be allowed at trial. The former president has denied all allegations of the affair.

Trump attorney Todd Blanche argued that the topics are a "sideshow" that threatened to "do nothing but confuse the jury about the actual crime charged."

Of the McDougal claims, Blanche called them "literally just salacious with no value."

Merchan ultimately sided with prosecutors on both, saying it would help prosecutors present a "narrative" and "lay the proper foundation" for their case.

The materials are "not illegal or improper," Merchan said. "I will allow it."

Merchan did instruct prosecutors not to make references to the fact that Trump's wife Melania was pregnant at the time of the alleged affair with McDougal.

After blocking Trump's effort to remove him from the case, Judge Merchan addressed a series of logistical and scheduling matters --- including his intention to take two days off next week for Passover.

Merchan then moved on to a more substantial matter: a dispute over how jurors will be questioned and selected. Trump attorney Todd Blanche argued that the jury questionnaire includes "asymmetry" that opens the door for jurors who harbor hostility toward the former president to be seated.

Merchan swiftly denied it. "That is not relevant," he said. "There is no asymmetry in the questionnaire."

Meanwhile, the former president appears to be listening intently. His eyes appear fixed on the judge at times and, at other times, he is reviewing papers in front of him.

After attorneys for each side introduced themselves, Judge Juan Merchan said that before jury selection can begin "there are a couple of loose ends we need to go over before we start."

The first item, Merchan said, was a pair of motions filed by Trump's legal team seeking his recusal from the case, citing his past comments in interviews and his daughter's work with a Democrat-affiliated firm.

The motions, Merchan said, cite "pages and pages of screen grabs, articles, social media posts and the like" that amount only to "a series of inferences, innuendos, and unsupported speculation."

To call them "attenuated is an understatement," Merchan said.

Merchan denied the motion and said the court would not address the matter further.

"All rise," the bailiff announced at 9:59 a.m. ET. "This is the People of the State of New York v. Donald J. Trump."

And with that, proceedings are underway.

Members of the prosecution and the defense, including the former president, stood briefly as Judge Juan Merchan entered the courtroom and took his seat on the bench.

Manhattan District Attorney Alvin Bragg entered the courtroom shortly before court went into session.