Donald Trump has taken a seat in court, where jury selection in his defamation trial is scheduled to get underway this morning.

His decision to attend this trial is a clear shift for the former president, whose lawyers portrayed his absence from last year's defamation and battery trial as a service to New York City, saying the city would not have to suffer the "logistical and financial burdens" of Trump's attendance.

Carroll's attorneys, however, pounced on Trump's absence.

"He didn't even bother to show up here in person," attorney Roberta Kaplan told the jury.

Writing on social media last month, Trump blamed his absence at the trial on "not good advice" from his then-lawyer Joe Tacopina.

"I was asked by my lawyer not to attend--'It was beneath me, and they have no case.' That was not good advice," Trump wrote.

Trump attorney Alina Habba is serving as Trump's lead defense attorney for this week's trial.

E. Jean Carroll has arrived at the courthouse for the first day of the trial.

The former Elle magazine columnist smiled to reporters as she entered court.

Following his victory in Iowa, former President Trump landed at 3:30 a.m. in New York and just arrived at his civil defamation trial in lower Manhattan.

Trump is not required to attend the trial, though his decision not to attend last year's defamation and battery trial by the same plaintiff, writer E. Jean Carroll, was mocked by Carroll's attorney.

Trump's motorcade pulled up to the courthouse this morning at at 8:50 a.m. ET.

When Donald Trump's federal defamation trial gets underway in lower Manhattan this morning, it will be only about 11 hours since the former president claimed victory in the Iowa caucuses.

The trial is expected to take about a week, which could take Trump right to the doorstep of the New Hampshire Primary, scheduled for next Tuesday.

The former president did not attend last year's trial, held at the same courthouse, where a New York jury found him liable for sexually assaulting E. Jean Carroll and defaming her when he denied her accusation in a 2022 social media post.

If Donald Trump takes the stand as expected today, the judge in the case is likely to closely supervise his testimony based on the ground rules the judge has laid down for the trial.

Judge Lewis Kaplan, who threatened to throw Trump out of the courtroom last week for making comments within earshot of the jury, established in a pretrial ruling that Trump is barred from arguing that he did not sexually abuse Carroll or that he never met her.

As Judge Kaplan has instructed the jury, it is not their responsibility to determine the truthfulness of Carroll's allegations because a jury last year already found Trump liable for sexually abusing Carroll and then defaming her; their job is only to determine whether Trump will have to pay Carroll additional damages beyond the $5 million awarded in the earlier trial.

According, Kaplan ruled, Trump cannot argue that he believed the two statements he made in June 2019 denying Carroll's allegations.

Instructing the jury last week on the facts of the case, Kaplan said, "Because you must accept them as true, this trial is not a do-over of the previous trial which determined those facts. What remains for you to decide are only two very limited issues relating to damages for Mr. Trump's publication of those two statements."