Judge Juan Merchan has restarted court for the afternoon proceedings following the lunch break.

Both Donald Trump and Manhattan District Attorney Alvin Bragg are in attendance.

Trump made no remarks to reporters before entering the courtroom after the break.

Trump attorney Todd Blanche, responding to prosecutors' request for Judge Merchan to fine Trump for three social media posts they say violated the judge's limited gag order, characterized the posts as "limited responses to this barrage of attacks" against him by Stormy Daniels and Trump's former attorney Michael Cohen.

"It's not as if President Trump is going out and targeting individuals. He's responding to … attacks from these witnesses," Blanche said.

The three posts by Trump -- two on April 10 and a third on April 13 -- came just days before the trial.

In one of those posts, Trump thanked Daniels' former attorney, Michael Avenatti for "revealing the truth about two sleaze bags" -- a statement prosecutors say clearly "attacks" Daniels and Cohen and their participation in the trial.

Judge Merchan said Blanche would have an opportunity to respond in a paper filing.

"I'll take this upstairs with me over the lunch recess," Merchan said.

The judge then recessed court until 1:30 p.m. ET.

Prosecutors with the Manhattan district attorney's office asked Judge Merchan's permission to seek to hold former President Trump in contempt for alleged violations of the judge's order against attacking witnesses.

"We're seeking permission to file a proposed order to show cause to show why the defendant should not be held in contempt based on extrajudicial statements," assistant district attorney Chris Conroy said.

He said the order would seek a $1,000 fine for each of three social media posts that prosecutors said violated the judge's limited gag order.

The three allegedly offending posts occurred this month when Trump reposted a social media post from Stormy Daniels' former attorney Michael Avenatti that was disparaging of Daniels and former Trump attorney Michael Cohen, plus a second post about Daniels and a third post about a member of the prosecution team.

"It is important for the court to remind President Trump he is a criminal defendant," Conroy said. "The defendant has expressed a willingness to flout the order" Merchan imposed.

Defense attorney Todd Blanche said the three posts do not violate the gag order. He sought permission to formally respond in writing.

Former President Donald Trump "wants to be present at everything" during trial, his attorney told the court, including side conferences during the jury selection process.

Judge Merchan suggested that could create "logistical" issues, citing the the presence of Secret Service agents, but suggested he would do his best to accommodate Trump.

The judge then directed a series of questions to Trump himself, asking him whether he understands that his failure to attend the trial or appear for sentencing could merit penalties from the court.

After each question, Trump nodded his head and appeared to answer verbally, "Yes," or "I do."

The first witness prosecutors with the Manhattan DA's office plan to call is former National Enquirer publisher David Pecker, according to two sources familiar with the matter.

ABC News previously reported that prosecutors planned to call Pecker as a witness, but sources now say he's expected to be the first witness to take the stand.

Pecker served as the longtime chief executive of American Media Inc., which published the National Enquirer.

Shortly after Trump announced his 2016 presidential campaign, Pecker met with Trump and agreed to act as the "eyes and ears" of the campaign by looking out for and killing negative stories about Trump, according to the Manhattan DA.

As part of the arrangement, Pecker allegedly directed a deal to pay $30,000 to a former Trump Tower doorman regarding the false allegation that Trump allegedly fathered a child out of wedlock, prosecutors say. Then-Trump attorney Michael Cohen allegedly insisted that the deal stay in place even after AMI discovered the allegation was false, and AMI paid the doorman, according to the Manhattan DA.

-Katherine Faulders