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.

Donald Trump kept contact information for two women who alleged they had sexual relationships with him, his longtime executive assistant testified Friday as the trial's second witness.

After former National Enquirer publisher David Pecker concluded his historic testimony as the first witness in the first criminal trial of a former president, Graff, entered the courtroom with a cane. Trump turned to see her as she entered, but the two did not appear to make eye contact.

Graff's testimony appeared to be a pick-me-up for jurors, who had been listening to the same voice on the witness stand for the better part of four days.

Graff worked for the Trump Organization for 34 years, beginning in October 1987, and testified that she was responsible for keeping Trump's contacts and calendars. Graff said those contacts included Karen McDougal and Stormy Daniels

Graff testified that she created the contact entry for Karen McDougal that included two addresses, a cell phone number, and an email address.

Under questioning from prosecutor Susan Hoffinger, Graff testified she had also entered a contact for Stormy Daniels.

"It contains her mobile phone number," Graff said. "I have a vague recollection of seeing her in the reception area on the 26th floor."

Graff said she also knew Daniels was a porn star.