More than 100 reporters stood in line outside of Manhattan Criminal Court at 6:30 a.m. on Tuesday.
Trump is expected to be arraigned in the afternoon, but journalists began gathering at 100 Centre Street by 2:45 p.m. on Monday to secure one of the limited seats inside the courtroom.
Some outlets hired people to wait in the line overnight so reporters could catch a few hours rest before returning early Tuesday morning.
The New York Supreme Court judge overseeing Tuesday's hearing noted the historic nature of the proceedings in a Monday court order.
"That this indictment involves a matter of monumental significance cannot possibly be disputed. Never in the history of the United States has a sitting or past President been indicted on criminal charges," Judge Juan Merchan wrote.
He went on to say that Trump's arraignment has "generated unparalleled public interest and media attention."
While Merchan acknowledged the importance of the press, he ruled against broadcasting the proceedings live after Trump's lawyers argued that doing so would create a "circus-like atmosphere."
Merchan also ruled that no electronic devices would be allowed inside the courtroom. Five pool photographers will be permitted to take still photos from the jury box for a limited time before the proceedings, and the use of cameras will be permitted in the hallways.
Nearby the courthouse, Trump supporters are expected to start gathering by 10:30 a.m.
The New York Young Republicans are holding a pro-Trump rally at lower Manhattan's Collect Pond Park, which is adjacent to the courthouse.
Rep. Marjorie Taylor Greene has publicized the event, calling for those in attendance to wear MAGA hats.
