Judge Merchan returned to the bench to check on how the search for the jury's requested readback material was coming.

"Where do we stand?" the judge asked.

Prosecutor Josh Steinglass said there were a "few outstanding issues" requiring Merchan's intervention.

Steinglass said the parties were in agreement about three of the four requests, but disagreed over the relevant portion of the transcript regarding David's Pecker's testimony about the 2015 Trump Tower meeting.

Steinglass said the lawyers disagreed over whether the jury should hear a portion of Pecker's testimony regarding what he relayed about the meeting to then-National Enquirer editor Dylan Howard.

"We tried to draw a line between the substance of the meeting and the execution," Steinglass told the judge.

"I can see why Mr. Blanche has some concerns about most of this," Merchan said after reviewing that portion of the transcript himself.

Prosecutors Josh Steinglass and Susan Hoffinger, and defense attorneys Todd Blanche and Emil Bove continued to hash out the relevant portion of the transcript for tomorrow's readback as requested by the jury.

After spending about half an hour in his waiting area, Donald Trump returned to the courtroom.

He entered alongside his son Don Jr. and took a seat at the defense table as the attorneys continued to pore over the material.

After dismissing the jury for the day, Judge Merchan asked the lawyers not to leave the courtroom until they decide the portion for the jury's requested readback.

"Yes, your honor," defense attorney Todd Blanche responded.

As the lawyers met with Merchan at the bench, Trump leaned back in his seat at the defense table, with his arm resting on the top of his chair.

Blanche asked if Trump could return the his waiting area while the attorneys searched for the readback material.

Merchan said he would allow it as long as Trump remained nearby in case he is needed.

Trump slowly walked out of the courtroom, scowling as he left.

With the jury back in the courtroom, Judge Merchan told them the requested readback of testimony would will take at least half an hour, so announced he would dismiss the jury for the day and address both their notes when they return tomorrow.

Before dismissing the jury for the day, the judge emphasized his standard instruction about the jury not looking up information related to the trial.

"You are at a critical point in the proceedings," Merchan said.

"See you tomorrow morning at 9:30," the judge said before the jury exited the courtroom.

As ABC News reported previously, the U.S. Secret Service spent considerable time working with New York City court and jail officials to determine what would happen if the judge, as threatened during trial, ordered former President Trump to be incarcerated for contempt -- a situation that did not come to pass.

According to an official briefed on the matter, U.S. Secret Service planners have not started the process of determining arrangements for Trump to be imprisoned at a New York state penitentiary in the event he is convicted. Because Trump is charged with nonviolent crimes, has no criminal record, and was allowed to remain free before trial, it is believed that there is no way that a conviction would lead to immediate incarceration.

If Trump is convicted, the Secret Service will spend the time prior to sentencing -- which could be months -- working with New York state prison officials to determine how imprisonment would work. An official told ABC News that potential questions could include, would USSS agents be armed inside prisons where firearms are prohibited? What prison would Trump be assigned to? Where would protection agents be stationed in relation to Trump? Those details, among many others, would have to be hammered out, the official said.

The Secret Service specifically avoided planning on a possible prison sentence during the trial so Trump and his loyalists could not accuse them of taking sides against the former president, the official said.

-Josh Margolin