Trump trial: Judge rebukes Michael Cohen ahead of expected testimony Monday

Before she worked in the White House, witness Madeleine Westerhout worked at the Republican National Committee.

On the stand, she testified about the aftermath of the release of the infamous "Access Hollywood" tape.

"It was a tape of Mr. Trump and Billy Bush," she said. "At the time I recall it rattling RNC leadership."

Prosecutor Becky Mangold asked, "Did the RNC consider replacing Mr. Trump as a candidate?"

Westerhout told the jury, "It's my recollection there were conversations how it would be possible to replace him as the candidate if it came to that."

Westerhout testified that after Trump won the election, she helped with the presidential transition.

She said she earned the nickname "Greeter Girl" in the media after she helped coordinate meetings at Trump Tower, appearing in videos and photos accompanying potential Trump appointees in the Trump Tower lobby.

Prosecutors have called their next big witness: Madeleine Westerhout, who was Trump's director of Oval Office operations in the White House.

Westerhout was subpoenaed to testify.

Asked if she is nervous to testify, she responded, "I am now." This is her first time in a courtroom, she said.

Trump leaned forward in her chair, watching her intently.

The prosecution has next called Tracy Menzies, a senior vice president at HarperCollins.

She is testifying about Donald Trump and Bill Zanker's 2007 book, "Think Big: Make It Happen in Business and Life."

Trump, at the defense table, tilted his head up at the large screen at the front of the courtroom and then leaned toward his monitor at the defense table as his image appeared on the cover jacket for the book.

Menzies testified about passages from the book, quoting Trump's approach to business and people management.

"As a matter of fact, I value loyalty above everything else -- more than brains, more than drive, more than energy," Trump wrote in one portion of the book, read aloud by Menzies. Another portion of the book noted that loyalty has become "part of the corporate culture of the Trump Organization."

"My motto is: Always get even. When somebody screws you, screw them back in spades," read another quote.

"When you are wronged, go after those people because it is a good feeling and because other people will see you doing it."

Also: "Get the best people and don't trust them."

Defense attorney Susan Necheles conducted a short cross-examination of Trump Organization Rebecca Manochio about her time at the Trump Organization.

"Is it a nice place to work?" Necheles asked.

"Yes," Manochio said.

"You didn't really interact with President Trump?" Necheles asked.

"No," Manochio replied.

During her cross examination, Manochio also testified that then-CFO Allen Weisselberg rarely communicated with Trump once he took office.

"President Trump and Allen Weisselberg did not speak at all?" Susan Necheles asked.

"Correct," Manochio responded.

Necheles attempted to highlight that the checks made out to Michael Cohen, that were sent to Trump for his signature, were sent to Trump's bodyguard in Washington because they were for "personal bills" that needed to be quickly paid, and the White House delayed Trump's personal mail.

"These were all personal bills that had to be paid promptly?" Necheles asked.

"Yes," Manochio said.