Attempting to rebuff the idea that Michael Cohen's then-attorney Robert Costello was asserting pressure on Cohen not to flip on Trump, Costello testified that Cohen was also trying to get information from him -- a backchannel that went both ways.

"Cohen was trying to get information from Rudy Giuliani?" defense attorney Emil Bove asked.

"That's correct," Costello said.

Following another objection, Costello let out an audible breath then at one point said, "Jeez."

An angry Judge Merchan sent the jury out of the courtroom.

"I'd like to discuss proper decorum in my courtroom," he admonished Costello. "If you don't like my ruling, you don't say 'Jeez,' you don't say 'Strike it,' because I'm the only one who can strike testimony in the court. If you don't like my ruling, you don't give me side-eye and you don't roll your eyes."

Costello said he understood.

Then Merchan abruptly said: "Are you staring me down?"

Merchan, now furious, then ordered the entire courtroom cleared out.

After a resolution was reached, everyone returned to the courtroom.

Michael Cohen's former attorney, Robert Costello, testified that in their initial meeting on April 17, 2018, Cohen said Trump did not know about the payment to Stormy Daniels.

"Michael Cohen said numerous times that President Trump knew nothing about those payments, that he did this on his own, and he said that numerous times," Costello testified.

"Jeez," Costello muttered when Judge Merchan sustained an objection following another question.

The judge had earlier instructed Costello to wait until an objection was resolved before answering the question.

Defense witness Robert Costello, who for a time was Michael Cohen's attorney, introduced details of his first meeting with Cohen, saying they first met at the Regency Hotel in Manhattan on April 17, 2018, with attorney Jeffrey Citron.

Cohen "was absolutely manic" during the first meeting, Costello said. The FBI had just raided his home and office.

“I really want you to explain what my options are. What’s my escape route?” Costello said Cohen told him.

Cohen said, "My life is shattered, my family's life is shattered," Costello testified.

Costello said he told Cohen, “This entire legal problem he was facing would be resolved by the end of the week if he had truthful information about Donald Trump and cooperated with the Southern District of New York.”

Costello said that Cohen on multiple occasions said, “I swear to god Bob, I don’t have anything on Donald Trump.”

"Did the topic of Stormy Daniels come up?" defense attorney Emil Bove asked Costello.

Costello said it did, with Cohen telling him, "I don’t understand why they’re trying to put me in jail for some f------ NDAs."

Judge Merchan, after returning to the bench, agrees to give defense attorney Emil Bove "some latitude" to explore with witness Robert Costello the pressure campaign that Michael Cohen spoke.

"I’m not going to allow this to become a trial within a trial ... that's not the purpose of this trial, and I'm not going to let it become that," the judge said.

The defense called Robert Costello to the stand.

Former President Trump has arrived in the courtroom.

His son Don Jr., accompanying him to this trial for the first time, is seated in the front row of the gallery.