Trump been sworn in as a witness for a hearing Judge Engoron is holding on whether he violated the limited gag order Engoron imposed earlier in the trial.

The former president then took the stand.

After Judge Engoron raised concerns that Trump had possibly violated the limited gag order the judge had imposed during the trial, Trump and his lawyers remained inside the courtroom at the start of the lunch break for a 25-minute conference that was sealed to the press.

Afterward, when asked by reporters about the private conference, Trump responded, "I can't tell you."

Trump otherwise praised his lawyer's cross examination of Michael Cohen, who admitted he lied under oath on multiple occasions.

"That was a Perry Mason moment," Trump said.

Defense attorney Alina Habba's cross-examination of former Trump attorney Michael Cohen featured frequent objections, cross talk and nonresponsive or argumentative answers that often breached customary courtroom decorum.

"You didn't ask me a yes-or-no question," Cohen scolded Habba at one point. "Yes I did," Habba shot back.

Cohen at times resisted answering questions, either objecting to them or insisting he did not understand them, while Habba paced the floor, blaring her questions into a hand-held microphone as Trump observed from the defense table.

"President Trump makes you relevant," Habba chastised Cohen. "If you didn't work for President Trump you wouldn't make most of your income today."

Cohen eventually conceded that he makes his living because of his prior relationship with Trump.

"Outside of your two podcasts, your merchandise and your books, is there any other form of income in your life?" Habba asked. "No," Cohen answered.

Habba's cross-examination concluded with a pointed question meant to question Cohen's motive for cooperating with the attorney general's investigation.

"Did you ever ask President Trump to pardon you while he was in the White House?" Habba asked.

"No," Cohen said.

"And he didn't pardon you?" she asked.

"No," Cohen replied.

After the first break of the day, Judge Engoron threatened to penalize Trump after what Engoron said was a "dangerous disobeyal" of the gag order he imposed prohibiting comments about his staff.

"I am very protective of my staff, as I should be. I don't want anybody killed," said Engoron, who handed down the limited gag order earlier in the trial after Trump made a social media post about his clerk.

Citing Associated Press reporting, Engoron expressed concern that Trump made a comment in the hallway about "a person who is much more partisan sitting alongside him."

Since Engoron's clerk usually sits to his right, the judge interpreted Trump's comment as referring to her.

"It is very easy for the public or anyone to know who this person is," Engoron said.

Trump's attorney Chris Kise said there was a misunderstanding, clarifying that Trump was referring to Michael Cohen, who has been sitting in the witness stand to Engoron's left. Kise attested that Trump confirmed to him that he was referring to Cohen.

"That's the way I read the statement," Kise said. "He is tired of listening to what he is hearing. It is very partisan."

Engoron did not impose any penalty and took Kise's explanation "under advisement."

Donald Trump's accounting expert snapped at a lawyer for the New York attorney general after the lawyer suggested his opinion was bought by the defense team.

As accounting expert Eli Bartov was testifying about Trump's use of disclaimers in his financial statements, state attorney Kevin Wallace interjected, saying, "This is pure speculation from someone they hired to say whatever it is they want."

Still in the witness box, Bartov began yelling at Wallace about the comment as Trump sat watching a few feet away.

"You make up allegations that never existed," Bartov shouted. "I am here to tell the truth. You ought to be ashamed of yourself for talking like that."

Bartov, in his testimony, said that Trump's use of disclaimers functioned "just like the warning from the surgeon general on a box of cigarettes."

The accounting expert said that Trump's disclaimers clearly flagged to his lenders that they should conduct their own due diligence regarding the figures, rather than rely on them at face value. Witnesses from Deutsche Bank -- Trump's primary lender during the 2010s -- previously testified that they conducted due diligence and significantly undercut the valuations Trump provided in his financial statement when deciding to offer him loans.

"I never saw anything that is clearer than that," Bartov said about the language in Trump's disclaimer clause. "Even my nine-year-old granddaughter Emma would understand this language."

In his pretrial summary judgment ruling, Judge Engoron dismissed Trump's argument that disclaimer clauses protect him from allegations of fraud. While multiple defense witnesses have attempted to rebut Engoron's opinion about Trump's use of disclaimer clauses, the judge has signaled he stands by his opinion.

"My summary judgment is the law of the case on the legal effect of this paragraph or these sentences," Engoron said in response to Bartov's testimony, adding that the clauses "would not insulate the client."

Nevertheless, Trump attorney Chris Kise requested that Engoron reconsider his finding.

"I am fairly liberal in reconsidering my opinions," Engoron said before Bartov resumed his testimony.