Trump trial: 1st week of testimony ends with testimony from Cohen's former banker

Despite first meeting Michael Cohen by chance in 2000 at a bar mitzvah, former National Enquirer publisher David Pecker testified that Donald Trump first introduced him to Cohen as his personal lawyer in 2007.

Pecker said Trump asked him to begin coordinating with Cohen about any stories or rumors related to Trump or his family.

"All of the contacts that I had with Mr. Trump -- now my contact should go through Michael Cohen," Pecker said about Trump's directive after meeting Cohen.

Pecker and Cohen would touch base monthly over the following decade, but communications ramped up after Trump announced his candidacy for president in 2015, Pecker said.

"I would say a minimum of every week, and if there was an issue, it could be daily," Pecker said about his contact with Cohen during the campaign.

Former National Enquirer publisher David Pecker, back on the witness stand, pointed at Donald Trump and flashed a smile when he was asked to identify the defendant. Trump turned his chin up and grinned at his longtime friend.

"I met Mr. Trump at Mar-a-Lago," Pecker said. "I've had a great relationship with Mr. Trump over the years."

That relationship started in 1989 when Pecker wanted to start a magazine called Trump Style.

"He was very helpful in introducing me to other executives in New York. He would always advise me of parties or events that I would go to," Pecker said, adding that Trump was among the first to congratulate him upon acquiring the National Enquirer.

Pecker described how Trump became a "major celebrity" after launching The Apprentice and later Celebrity Apprentice, and how the National Enquirer was there to juice Trump's profile.

"He was always kind enough to send me the content showing the ratings and I was able to publish that," Pecker said of their "great mutual beneficially relationship.

Pecker said he considered Trump a friend from 2015 to 2017, calling him by the familiar "Donald," as he pursued the White House for the first time.

"After he announced his run for the presidency I saw Mr. Trump more frequently, maybe once a month," Pecker said. The two spoke "maybe once every couple of weeks."

Pecker recalled meeting Trump in his office when his assistant brought a batch of invoices and checks to sign.

"As I recollect the entire package was stapled together," Pecker said.

"So you observed him reviewing an invoice and signing a check?" prosecutor Josh Steinglass asked. "That's correct," Pecker responded.

"I would describe him as very knowledgeable, very detail-oriented, almost as a micromanager," Pecker said.

When Steinglass asked how Trump was with money, Pecker responded, "He was very cautious and very frugal."

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

The combative hearing on Trump's alleged violations of the judge's limited gag order ended with the judge saying he will not rule from bench on the district attorney's motion to hold Trump in contempt, so a ruling will come later.

Before concluding the hearing, Judge Merchan told Trump attorney Todd Blanche, "You're not offering me anything … to hang my hat on."

The trial will resume shortly with the return of former National Enquirer publisher David Pecker to the witness stand.