Day 6 of Donald Trump's criminal trial will begin with a hearing in front of Judge Juan Merchan in which prosecutors will seek to have the former president held in contempt for repeatedly violating the limited gag order in the case.

Prosecutors have argued that Trump violated the limited gag order -- which prohibits statements about witnesses, jurors, and lawyers in the case other than Manhattan District Attorney Alvin Bragg -- on at least ten separate occasions this month, and have asked the judge to hold him in contempt of court and fine him $10,000.

Trump's lawyers have argued that prosecutors have not proven the posts in question were willful violations of the gag order, telling Merchan that the former president was defending himself from attacks by the likely witnesses.

Following the hearing, testimony in the hush money trial is scheduled to resume with former National Enquirer publisher David Pecker on the stand. Prosecutors believe he is key to understanding Trump’s motivation for paying off Stormy Daniels so damaging information did not seep into the 2016 campaign.

Moments after his criminal trial adjourned for the day, Donald Trump exited the courtroom and told reporters that his payments to his former attorney Michael Cohen were appropriately labeled as legal expenses.

"Actually, nobody's been able to say what you're supposed to call it," Trump told the media. "If the lawyer puts in a bill or an invoice and you pay the bill ... that's a very small little line ... it's not like you could tell a life story."

"They marked it down for a legal expense. This is what I got indicted over," Trump said.

The former president also attempted to paint Cohen as an unreliable witness and said he "wasn't very good in a lot of ways" as an attorney.

Trump's motorcade then departed the courthouse.

-Mike Pappano

David Pecker stepped off the witness stand after his initial testimony. He is scheduled to return to the witness stand tomorrow at 11 a.m. ET.

During his brief testimony, Pecker suggested that former National Enquirer Chief Content Officer Dylan Howard -- an alleged participant in the catch-and-kill scheme alleged by prosecutors -- will be unable to testify due to a medical condition.

Pecker appeared to greet Trump and his lawyers as he exited the courtroom.

Court subsequently wrapped for the day.

Trump left the courtroom flanked by Secret Service agents and staffers, as well as Trump Organization General Counsel Alan Garten.

Judge Merchan is scheduled to hold a contempt hearing about Trump’s alleged violations of the case’s limited gag order tomorrow morning at 9:30 a.m. ET.

David Pecker, who once called Donald Trump "a personal friend of mine," flashed a big smile as he took the stand as the trial's first witness, belying the gravity of the moment.

Pecker cackled loudly into the microphone, jolting the room, when prosecutor Josh Steinglass, asked him about his various phone numbers that he struggled to remember.

Pecker, 72, was the publisher of the National Enquirer but prosecutors said he was "acting as a co-conspirator" in helping buy and bury damaging stories about Trump, including a doorman's false claim that Trump had fathered a love child and a Playboy model's claim of a sexual relationship with Trump, who has denied both allegations.

Trump, who once said Pecker would make a "brilliant" choice as editor of Time magazine, listened while leaning forward in his chair, arms crossed on the table, an unhappy look on his face.

Pecker testified that he had final say whether to publish any story involving a famous person.

"I had the final say of the celebrity side of the magazine," Pecker said. "We used checkbook journalism. We paid for stories."

Pecker is testifying pursuant to a subpoena. He has also secured a non-prosecution agreement with the Manhattan district attorney's office.

Former President Trump, sitting at the defense table, softly shook his head "no" when prosecutor Matthew Colangelo told the jurors that Trump formed a "conspiracy" with Michael Cohen and David Pecker to "help him get elected."

It was one of the most notable reactions from Trump as he sits and listens to prosecutors lay out their story of the case.

Colangelo then brought up the "Access Hollywood" tape and said it showed Trump "bragging about sexual assault," Trump shook his head no again, pursing his lips. He did not react when Colangelo, quoting Trump on the tape, said, "grab them by the p----."

Earlier, as Colangelo brought up a former Trump doorman who was he said was paid off as part of the alleged catch-and-kill scheme, Trump -- looking annoyed -- leaned over and tapped his lawyer Todd Blanche. When Colangelo said the doorman was paid $30,000 to bury his story, Trump raised his eyebrows and grabbed onto a pen.

The former president has been passing notes and sliding papers between Blanche and attorney Emil Bove, and leaning side-to-side, whispering to them. Blanche at one point pulled out his own sticky note and slid a note back to Trump.

At other times he has hardly seemed engaged at all, slumping in his red leather chair looking straight forward with no facial expression, or fidgeting with his head tilting back and forth. At one point during jury instructions he let out a yawn.