Judge Juan Merchan announced there is an issue with Juror No. 9 -- who, according to Merchan, "was concerned about media attention" of the case. According to Merchan, the juror "wasn't 100% sure" they could serve.

Merchan said they would speak to the juror in chambers to "find out what the issue is and see if this juror can continue to serve."

After a brief sidebar, the judge announced: “Juror No. 9 is going to remain with us.”

There are six alternate jurors seated in case any of the 12 jurors cannot serve.

On his way into the courtroom for the day's proceedings, Trump once again alleged that the trial constitutes election interference, claiming that the proceedings are unfairly keeping him off the campaign trail.

"Everybody knows that I'm here instead of being able to be in Pennsylvania and Georgia and lots of other places campaigning, and it's very unfair," he told reporters.

"It's a very, very sad day in America," he said. "I can tell you that."

The former president is seated at the defense table between his lawyers Todd Blanche and Emil Bove.

-Mike Pappano

The proceedings are underway in former President Donald Trump's hush money trial. Trump and Manhattan District Attorney Alvin Bragg are both in the courtroom.

Three prosecutors -- Joshua Steinglass, Matthew Colangelo, and Susan Hoffinger -- are seated at the counsel table.

Bragg is seated in the front row of the gallery with approximately a dozen lawyers and staff from his office.

The first witness prosecutors with the Manhattan DA's office plan to call is former National Enquirer publisher David Pecker, according to two sources familiar with the matter.

ABC News previously reported that prosecutors planned to call Pecker as a witness, but sources now say he's expected to be the first witness to take the stand.

Pecker served as the longtime chief executive of American Media Inc., which published the National Enquirer.

Shortly after Trump announced his 2016 presidential campaign, Pecker met with Trump and agreed to act as the "eyes and ears" of the campaign by looking out for and killing negative stories about Trump, according to the Manhattan DA.

As part of the arrangement, Pecker allegedly directed a deal to pay $30,000 to a former Trump Tower doorman regarding the false allegation that Trump allegedly fathered a child out of wedlock, prosecutors say. Then-Trump attorney Michael Cohen allegedly insisted that the deal stay in place even after AMI discovered the allegation was false, and AMI paid the doorman, according to the Manhattan DA.

-Katherine Faulders

As the prospective alternates continue to answer the questionnaire questions one by one, some jurors have revealed loose connections to Trump and others surrounding the case.

A young woman who works in financial services said that her father is a "lifelong friend" of Chris Christie, the former New Jersey governor who then ran Trump's 2016 transition team before becoming a critic of the former president.

The mention of Christie's name drew a rare laugh from Trump.

The woman also revealed a loose connection to Trump's former attorney Michael Cohen.

A man who lives in Midtown and said he uses his spare time to "try to find a wife" said he has multiple family members who work for the New York State Court -- and is related to a court officer who's currently present in the courtroom. Trump attorney Todd Blanche let out a laugh.

The man said it wouldn't affect his ability to be fair and impartial.

One woman stood up and tearfully explained she served time in Massachusetts over 10 years ago. Trump appeared to crane his neck and turn all the way to look at her, before Judge Merchan called her to the bench for a sidebar.

"I apologize for crying," the woman said as she continued with her questionnaire.

Trump has been sitting at the defense table flipping through papers that contain either charts, photos or graphics.