The civil fraud trial of former President Trump, his adult sons, and Trump Organization executives enters its third week with a notable schedule change.

Trump's former lawyer and so-called "fixer" Michael Cohen, who was initially scheduled to begin his testimony on Tuesday, has delayed his court appearance due to a preexisting medical condition.

"I look forward to testifying and correcting the record as to the multiple misstatements and responses by previous witnesses who stated … 'I don't recall.' Unfortunately for them, I do," Cohen told ABC News on Saturday.

Trump is expected to attend multiple days of the trial beginning on Tuesday, according to sources familiar with his plans.

In the meantime, Trump Organization executive Patrick Birney is expected to conclude his testimony this morning.

Birney is scheduled to be followed on the stand by Mark Hawthorn, the chief accounting officer at Trump Hotels.

Trump Organization executive Patrick Birney was once pressured by his former CFO, Allen Weisselberg, to use an unrealistic metric to inflate the value of Trump Tower, Birney testified.

Birney testified that he consulted a generic real estate report to determine a 2.67% capitalization rate to measure the value of Trump Tower -- despite an executive at real estate company Cushman and Wakefield recommending a higher rate, which would have decreased Trump Tower's value.

When Weisselberg and Birney discussed the topic in a Trump Tower restroom, Birney said he encouraged the CFO to use a higher, more realistic capitalization rate that would be more sustainable, in order to maintain the building's value in the future, Birney testified.

"I think he said, just use 2.67%," Birney recalled. "I said I am fine using that capitalization rate, but I am worried that if we are only using 2.67, the building is so old, next year there might not be a cap rate as low as 2.67."

The New York attorney general alleges that Weisselberg "systematically rejected" multiple valuations of Trump Tower in 2019 that would have lowered its value between $161 and $224 million.

Court has adjourned for the day, with Birney scheduled to continue his testimony on Monday morning.

Trump Organization executives considered adding $144 million to Trump's net worth based on a "premium for presidential property" in 2017, according to testimony of executive Patrick Birney.

The premium, which was applied to draft versions of Trump's financial statements, varied between 15% and 35% for Trump's properties, including his Mar-a-Lago Club, which was described in documents as the "presidential winter residence," according to materials entered into evidence.

The potential adjustment followed a $200 million shortfall between Trump's 2016 and 2017 statements, after a Forbes magazine article prompted executives to revalue the former president's penthouse, state attorneys said.

"Who directed you?" state attorney Eric Haren asked Birney about adding the premium.

"I don't really remember, but probably Allen Weisselberg," Birney said.

Birney testified that the premium was eventually removed from the 2017 statement, according to a document that tracked changes made to the statement. He did not provide additional context about why the premium was removed.

Trump Organization executive Patrick Birney will continue his testimony this morning on Day Nine of the trial.

Roughly 40 years younger than ex-Trump Organization CFO Allen Weisselberg -- his former boss and the previous witness in the trial -- Birney testified yesterday that he largely relied on Weisselberg and controller Jeffrey McConney to put together Trump's annual financial statements.

"I was not the final decision maker," said Birney, who was an assistant VP during that time period.

State attorney Kevin Wallace highlighted Birney's statements during his opening statement as evidence of an alleged conspiracy within the Trump Organization to inflate Trump's net worth.

"He likes to see it go up," Birney said, according to Wallace.

If Birney completes his testimony today, Trump Hotels chief accounting officer Mark Hawthorn is scheduled to testify next.

After multiple in-court disputes about communications between him and his law clerk, Judge Arthur Engoron modified his limited gag order to cover attorneys in former President Donald Trump's civil fraud trial.

"Defendants may reference my staff as is appropriate to ask about scheduling issues or the management of the trial, which is an integral part of their jobs. What they may not do is to make any further statements about internal and confidential communications (be it conversations, note passing, or anything similar) between me and my staff," Engoron wrote in his supplemental limited gag order on Friday.

Engoron wrote that defense lawyers Chris Kise, Alina Habba, and Clifford Robert made "repeated, inappropriate remarks about my Principal Law Clerk, falsely accusing her of bias against them and of improperly influencing the ongoing bench trial."

The attorneys have raised multiple arguments during the trial that Engoron and his clerk passing notes between each other suggests impropriety and is distracting. Going forward, if the lawyers want to object to communications with his clerk, Engoron advised that they refer to the order as a "blanket statement."

"This gag order is as narrowly tailored as possible to accomplish its purpose, which is to protect the safety of my staff and promote the orderly progression of this trial," Engoron said.

To justify the safety threat, Engoron added that his chambers has received "hundreds of harassing and threatening phone calls, voicemails, emails, letters, and packages" since the start of the trial,

The judge threatened "serious sanctions" for violations of the extended order.