During the arraignment, Trump kept his focus on his side of the room. He did not make eye contact with special counsel Jack Smith and never looked over to the prosecution side, even as he was leaving.

Just like his New York arraignment, Trump did not have any friends or family there with him, just his lawyers and his personal aide and co-defendant Walt Nauta.

Trump thanked Miami in a Truth Social post for the city's "warm welcome," the first time he posted after his arraignment.

"Thank you Miami. Such a warm welcome on such a SAD DAY for our Country!" he posted at 4:30 p.m. ET.

MSNBC Legal Analyst Lisa Rubin was in the courtroom during Trump’s arraignment. She made three observations of note during the proceeding:

• Trump lawyer Todd Blanche not only whispered to Trump during the hearing, but also frequently talked directly to Walt Nauta and to Nauta and Nauta’s attorney Stanley Woodward together. Rubin said that is “highly unusual.”
• When the hearing ended, all of the Secret Service agents sitting in the two rows directly behind the defense table stood up to flank Trump and then they surrounded him to escort him out. But, rather than simply looking ahead and leaving, Trump turned around and stared down all of the people in the courtroom, scowling and seemingly scanning for someone he knew.
• As Trump left, Nauta left with him, falling into the line of agents trailing him. It was as if he flipped a switch and went from being a co-defendant to resuming his duties as Trump’s aide in a heartbeat.

Nevada GOP Chair Michael McDonald and Committeeman Jim DeGraffenreid were spotted exiting a federal courthouse where a grand jury investigating the Jan. 6 Capitol attack is meeting.

McDonald, a close Trump political ally, as well as Jim DeGraffenreid, the Nevada GOP’s vice chair, were identified by NBC News entering the room where the grand jury is meeting earlier.

When asked this morning about having to appear the same day as Trump’s court date, McDonald joked to NBC News that it was not on his “bucket list.” McDonald had previously confirmed to NBC News that federal authorities seized his cell phone as part of the investigation.

The appearance comes a week after former Trump White House official Steve Bannon was subpoenaed by a federal grand jury in Washington in connection with special counsel Jack Smith’s investigation into Jan. 6. The Bannon subpoena, for documents and testimony, was sent out late last month, the sources said.

Sen. Tommy Tuberville, R-Ala., will attend Trump’s remarks in Bedminster, New Jersey, tonight, a source familiar tells NBC News.

As a result, Tuberville missed votes in the Senate this afternoon, preventing Republicans from forcing Vice President Kamala Harris to show up a break a tie.

The Senate is currently considering the nomination of Jared Bernstein to be Chairman of the Council of Economic Advisers, who does not have the support of Sen. Joe Manchin, D-W.V. If Tuberville and all other Republican senators had been there, Harris would have been needed to come and break a 50-50 tie. But since Tuberville left for Bedminster, he missed the 2:15 p.m. procedural vote. Bernstein will now get a final confirmation vote during a 5 p.m. vote series and Harris can enjoy a day off from the Senate.

After greeting supporters at the famous Cuban restaurant Versailles in downtown Miami, Trump departed. He is headed back to New Jersey.

All press is good press? That philosophy has governed much of Trump’s tumultuous four decades in the public eye, but even when the headlines are about being charged with 37 indictments?

Apparently so to Jason Miller, one of Trump’s top communications advisers, who seemed to celebrate the across-the-board coverage of his boss’s arraignment in a tweet.

Jack Smith, the special counsel in the Trump investigations, was in the courtroom during Trump’s arraignment. Smith had a significant security presence surrounding him.

After the arraignment concluded, Smith approached the prosecutors’ table and put his arm around David Harbach, a prosecutor working with the special counsel’s investigation into Trump’s handling of classified documents, and patted him on the shoulder. Harbach and Smith walked out of the courtroom together.

Walt Nauta, Trump’s valet and alleged co-conspirator, made his first appearance in court alongside his boss Tuesday, but did not enter a plea because he did not have local legal counsel.

He will be now arraigned later this month to enter a plea, though will not have to personally appear again.