Former President Trump has arrived at the courthouse in lower Manhattan.

He stepped out of his motorcade, waved, and walked into the side entrance.

A small group of supporters and protesters both cheered and booed his arrival.

Former President Trump is en route to the courthouse in lower Manhattan for this morning's proceedings.

The former president left for the the courthouse from Trump Tower in Midtown Manhattan.

Court this morning may start with a hearing over what prosecutors can ask Trump during cross-examination should he take the stand later in the trial.

The judge would hear arguments from both the people and the defense. The proceedings would then move into jury selection later in the morning.

Prosecutors have indicated they would want to cross-examine Trump on approximately "thirteen different court determinations," including the recent civil finding that he sexually abused columnist E. Jean Carroll, the criminal conviction of the Trump Organization last year, the finding that he committed a decade of business fraud, and the dissolution of his charity, according to sources familiar with the matter.

The hearing -- known as a Sandoval hearing -- is standard practice before jury selection and typically occurs when a defendant signals a willingness to testify.

In a filing last month, Trump's lawyers requested a Sandoval hearing to limit the scope of Trump's potential cross examination, if he opted to testify.

ABC News' Katherine Faulders contributed to this report.

Former President Trump will leave his Trump Tower apartment in Midtown Manhattan this morning and travel down to lower Manhattan for the first day of jury selection in his criminal hush money trial.

The proceedings come after Trump unsuccessfully tried three times last week to delay the start of the trial through the filing of appeals.

As a defendant in a criminal case, the former president will be required to be in court for the entire trial, which is expected to take six to eight weeks.

Former National Enquirer publisher David Pecker, during his redirect examination, reiterated the basic terms of his catch-and-kill arrangement with Donald Trump and Michael Cohen, though he acknowledged he did not use the words "catch-and-kill" during his August 2015 meeting at Trump Tower.

"Did you specifically use the word catch-and-kill during that meeting?" prosecutor Joshua Steinglass asked.

"No, I did not," Pecker said.

"What was your understanding of the part of the agreement that involved money?" Steinglass asked.

"It was my understanding that I would use the company's sources to hear any information that was coming out on Mr. Trump or the campaign related specifically to women who would be selling their stories," Pecker said, referencing a similar arrangement with then-gubernatorial candidate Arnold Schwarzenegger.

"My understanding is [for] those stories that come up, I would speak to Michael Cohen and tell him that these are the stories that are going to be for sale. If we don't buy them someone else will, and that Michael Cohen would buy them or make sure they don't ever get published. That was my understanding from that meeting," Pecker said.

Pecker reiterated that he did not plan to publish the Karen McDougal story -- despite its value to the National Enquirer if it were true -- in order to help the Trump campaign.

"That would kind of be like National Enquirer gold?" Steinglass asked.

"Yes," Pecker responded.

"Zero intention of publishing that story?" Steinglass asked.

"That is correct," Pecker said.

"You killed the story because it helped the candidate Donald Trump?" Steinglass asked.

"Yes," Pecker said.

The proceedings subsequently broke for lunch, with redirect to resume afterward.