After several hours of arguments over various evidentiary and procedural matters, jury selection is nearly ready to get underway.

"This is what we're going to do -- sit down and relax," Judge Merchan told attorneys for both sides. "We have 500 jurors waiting for us. And to be honest with you, I'm not interested in getting into this minutiae with you."

"There's more important work to be done," he said.

Before moving on, Merchan assured attorneys for both parties that his pretrial rulings are subject to change over the course of the trial.

"This is a roadmap," Merchan said, referring to his rulings. "I can reverse myself, I can change my mind."

Merchan then began reading instructions to the attorneys about how to conduct themselves before prospective jurors.

After a break, Judge Merchan ruled that prosecutors can submit evidence related to Trump's attacks on his former attorney Michael Cohen if the defense first chooses to question Cohen's credibility as a witness.

Merchan said, "I imagine" the defense will seek "to discredit" Cohen -- and when they do, he said, "the door is open" for prosecutors to introduce those tweets of Trump's.

Trump has been leaning forward with his hands clasped beneath his chin as his attorney, Todd Blanche, argues about what other evidentiary guardrails should be in place.

Following the arguments over alleged witness intimidation, prosecutors signaled they may seek to have Trump held in contempt.

A limited gag order Judge Merchan imposed in recent weeks prohibits Trump from attacking witnesses and others associated with the case.

"Shortly, we will be seeking order to show cause as to why defendant should not be held in contempt," prosecutor Josh Steinglass said, suggesting Trump violated Merchan's order.

Prosecutor Joshua Steinglass argued that several pieces of evidence related to Trump's alleged "pressure campaign" meant to "keep witnesses off this stand, at this trial" should be introduced at trial.

Steinglass said Trump's public commentary amounted to a "thinly veiled effort to intimidate" two of the government's star witnesses, Michael Cohen and Stormy Daniels.

"The defendant himself has publicly embraced the public strategy of going after his perceived enemies," Steinglass said.

"These tweets, phone calls and emails" should be permitted, Steinglass said. "It's a clear effort to raise the cost of cooperation."

Trump's public postings, Steinglass argued, demonstrate Trump's attempts to silence potential fact witnesses and "relate to his consciousness of guilt."

Trump attorney Todd Blanche pushed back, saying that Trump has been "facing criticism from all sides … the media and others ... and he's defending himself" to his "millions and millions of followers."

When the National Enquirer's parent company AMI signed a non-prosecution agreement with federal prosecutors in New York in September 2018, AMI was negotiating to sell the Enquirer and two other tabloids to Hudson News Group for $100 million, former publisher David Pecker testified under cross-examination.

Defense attorney Emil Bove suggested the pending sale put Pecker under pressure to resolve a federal campaign finance investigation over its payment to quash stories damaging to Donald Trump's presidential ambitions.

"You knew to finalize that deal, to consummate it, you had to clear out the investigations?" Bove asked.

"Yes," Pecker responded. "From a timing standpoint it would have added stress to the transaction."

On Thursday Pecker testified he had been "very worried" about the investigation. He had received a letter from the Federal Election Commission and said he called up Michael Cohen. "I said 'I'm very worried,'" he testified.

Pecker said Cohen responded, "Why are you worried? Jeff Sessions is the Attorney General and Donald Trump has him in his pocket."

The defense appears to be suggesting AMI cooperated with federal campaign finance investigations not because the company had done anything wrong related to the 2016 Trump campaign, but out of financial considerations in order to preserve the $100 million deal with Hudson News, which was finalized in April 2019.