Judge Merchan began by denying the state's request to enter into evidence former Trump Organization CFO Allen Weisselberg's separation agreement with the company.

"It would come in as a business record, but I am not going to allow it in," Merchan said. "It doesn't prove any element of the offense, it doesn't move the ball in any way."

Prosecutors sought to introduce the agreement -- which allotted Weisselberg $2 million after he left the Trump Organization-- to explain why Weisselberg was not testifying at the trial. Weisselberg is currently serving a five-month sentence on Rikers Island for perjury.

Trump, meanwhile, has been waiting patients at the defense table for the jury to enter, which is taking a bit longer than usual.

"Where's the jury?" one individual in his entourage could be heard whispering.

Judge Juan Merchan took his seat on the bench and opened the day's proceedings.

Each of the lawyers made brief introductions before Merchan addressed Trump in his usual fashion.

"Good morning, Mr. Trump," Merchan said from the bench.

Donald Trump has entered the courtroom. He looked around the room as he made his way to the front.

The former president is joined by his attorneys, as well as numerous associates and Secret Service.

Eric Trump and attorney Alina Habba are seated together in the first row, immediately behind Trump. Behind them in the second row, which is completely full, are Trump's legal adviser Boris Epshteyn, Natalie Harp, and J.D. Vance.

Campaign team members Jason Miller and Karoline Levitt are seated in the very back of the courtroom.

Manhattan District Attorney Alvin Bragg has also entered the courtroom.

Prosecutors from the Manhattan district attorney's office have entered the courtroom.

Prosecutor Susan Hoffinger, who is expected to lead Michael Cohen's direct examination, placed a hefty three-inch binder at the lectern before returning to the counsel table.

In 2011, Cohen flagged a poll to Trump that suggested he would be a competitive presidential candidate

"I took that article and I brought to Mr. Trump, and I said what do you think?" Cohen said. "He said it's interesting, we should look into it."

Cohen said that he created a website to encourage the run called ""

"It was further proof that his name recognition, his popularity … was so strong," Cohen said.

Cohen said that Trump backed away from the idea of running in the 2012 race to focus on his other commitments, including his television show.

"You don't leave Hollywood. Hollywood leaves you," Cohen recounted Trump saying.

While Trump backed away in 2012, Cohen said Trump made a vow about 2016.

"He promised to me that he would do it in the next election cycle," Cohen said.

Cohen. on the stand, appears earnest and somewhat morose -- different from his bombastic, showy persona on his podcast or on social media. He appears calm and speaks slowly, referring to his former boss as "Mr. Trump."