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 U.S. Secret Service has held meetings and started planning for what to do if former President Trump were to be held in contempt and Judge Juan Merchan opted to send him to short-term confinement, officials familiar with the situation tell ABC News.

Prosecutors said at this point they are seeking a fine.

"We are not yet seeking an incarceratory penalty," assistant district attorney Chris Conroy said, "But the defendant seems to be angling for that."

Officials do not necessarily believe Merchan would put Trump in a holding cell in the courthouse but they are planning for contingencies, the officials said.

There have be no discussion about what to do if Trump is convicted and sentenced to prison, they said.

"Under federal law, the United States Secret Service must provide protection for current government leaders, former Presidents and First Ladies, visiting heads of state and other individuals designated by the President of the United States," the Secret Service said in an official statement. "For all settings around the world, we study locations and develop comprehensive and layered protective models that incorporate state of the art technology, protective intelligence and advanced security tactics to safeguard our protectees. Beyond that, we do not comment on specific protective operations."

-Josh Margolin and Luke Barr