According to sources, in the event that former President Donald Trump is indicted and arraigned in an open courtroom in Manhattan, the U.S. Secret Service is coordinating security plans with the New York Police Department.

According to sources briefed on the discussions, the two agencies had a call on Monday to discuss logistics, including court security and how Trump might surrender for booking and processing.

In New York, white collar criminal defendants typically have the ability to negotiate a surrender.

Eric Adams, the mayor of New York City, stated earlier on Monday that he was "confident" that the city is prepared for any protests regarding the possibility of the former president being indicted.

"We are observing remarks via virtual entertainment, and the NYPD is doing their ordinary job of ensuring there is no improper activities in the city," Adams expressed Monday at an irrelevant public interview. " We are certain that we will be able to accomplish that."

Composing on his Reality Social stage Saturday, Trump called for challenges what he said was his normal capture Tuesday, regarding the Manhattan lead prosecutor's test into the 2016 quiet installment to porno entertainer Blustery Daniels.

In the final days of the 2016 presidential campaign, Trump's former personal attorney, Michael Cohen, allegedly paid Daniels $130,000 to keep her quiet about an affair she claimed to have had with Trump. The funds have been framed as an extortion payment by the former president's attorneys, who have denied the affair.

Manhattan Lead prosecutor Alvin Bragg is reflecting on whether to accuse Trump of misrepresenting business records, after the Trump Association purportedly repaid Cohen for the installment then, at that point, logged the repayment as a lawful cost, sources have told ABC News. Trump has denied any wrongdoing and referred to the payment as "a private contract between two parties."

Adams told reporters that he has not met with Bragg and has not discussed the matter with him, despite the fact that city officials have heard "a lot of reports" about a possible indictment.

According to posts on the internet, various grassroots groups appear to be organizing a few minor protests. However, the conservative activist who is in charge of the "Stop the Steal" movement, Ali Alexander, has made it clear that his group will not organize any protests.

ABC News received confirmation from sources in Palm Beach County, Florida, that authorities were preparing for protests near Trump's Mar-a-Lago estate in the event of his indictment.

A small group of Trump supporters gathered on Sunday on the bridge that connects Palm Beach to the mainland. If Trump were to be indicted, they said they would return with more people on Tuesday or sooner.

According to a Sunday intelligence bulletin obtained by ABC News from the Homeland Security and Emergency Management Agency in Washington, D.C., some extremists view the potential indictment of Trump as a "line in the sand."

According to a bulletin from the DC Fusion Center, a threat intelligence group within the agency, "Potential criminal justice actions taken toward a former US president -- or actions perceived to be taken toward the former president -- remain a 'line in the sand' for Domestic Violent Extremists (DVE) communities and thus have the potential to manifest in violence toward government targets or political officials."

According to the bulletin, Trump's post on social media in which he called for protests "was met with an immediate increase in violent online rhetoric and expressed threats toward government and law enforcement targets perceived as participating in a political persecution of the former president, as well as calls for 'Civil War' more generally." This was in response to the fact that Trump's post was met with these responses. Many of the worrying posts that the DC Fusion Center observed referred to the possibility of the former president's arrest as a "red line" or "line in the sand," after which violent action was the only option.

"The most significant 24-hour traction observed by the Fusion Center since the August 2022 search warrant service at Mar-a-Lago is this uptick in rhetoric associated with an alleged indictment against the former president," the bulletin stated.

Concerns about a possible indictment of Trump have been raised by the FBI to state and local police departments all over the country, but the bureau maintains that it does not have any additional information.

In a warning obtained by ABC News, the FBI stated, "The FBI continues to closely monitor a potential Indictment of the former President" that "open source reporting has indicated may occur in the coming week."

The FBI stated, "At the present time there is no information to confirm this indictment nor is there any information to indicate violence or criminal activity is planned," and they added that there is no evidence that "other than First Amendment protected action is being planned."

"No current indication of threats directed at the US Capitol or Members of Congress," according to the U.S. Capitol Police, is their own assessment of the possibility of violence.

The assessment, which ABC News obtained, stated that the organization "has not yet seen any indication of large-scale organized protests and/or violence, as (it) did leading up to January 6, 2021."

No president of the United States has ever been charged with a crime.