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.

Jury selection is moving into a new phase with lawyers beginning the individual questioning of prospective jurors who made it through Judge Merchan's initial cuts.

Assistant District Attorney Joshua Steinglass, up first, reminded prospective jurors that the case is not a referendum on their politics.

"Really give us the most honest answers you can," Steinglass said. "No one is suggesting you can't be a fair juror because you've heard of Donald Trump." He added, "We don't expect you to have been living under a rock for the last eight years or the last 30 years."

Steinglass first asked whether anyone felt like the district attorney's office had to prove more than the law requires "because of who he is."

Not a single hand went up.

"I think the job of the jury is to understand what's facts," one woman said. "I don't think it matters what my political views are. We listen to the facts of the case."

Trump is engaged with some of the responses at times, and at other times he leans back in his chair with his eyelids heavy.