The prosecutor in Atlanta who obtained an indictment this week accusing President Trump and 18 others of a “criminal enterprise” wants to take the case to trial in March, while the former president is planning to present at a press conference on Monday information that he claims will exonerate him.

“A Large, Complex, Detailed but Irrefutable REPORT on the Presidential Election Fraud which took place in Georgia is almost complete,” Mr. Trump said on his Truth Social platform, and “will be presented by me at a major News Conference at 11:00 A.M. on Monday of next week in Bedminster, New Jersey.” 

Mr. Trump explained that “all charges” leveled against him in Georgia “should be dropped based on the findings of that report,” Politico reported.

The Trump press conference would take place a few days prior to the deadline set by the Fulton County, Georgia, district attorney, Fani Willis, for Mr. Trump and his co-defendants to surrender themselves to authorities.

Ms. Willis said in a proposed scheduling order filed with the court on Wednesday that she wants the trial to start on March 4. That would have the trial starting a day before Super Tuesday, when the most delegates are at stake in the primary contest to decide the next Republican presidential nominee. 

Roughly 14 primaries are set to be held across the country, from California and Texas to Massachusetts and Maine. Mr. Trump is currently his party’s frontrunner.

Mr. Trump and 18 others were indicted Monday by a Fulton County grand jury. They are accused of committing various crimes as part of a scheme to keep Mr. Trump in power after his 2020 election loss to President Biden.

Ms. Willis is also proposing that arraignments for the defendants happen the week of September 5. She had already set a deadline of noon August 25 for all the defendants to turn themselves in at the Fulton County Jail to be booked. 

That would seem to suggest that Mr. Trump and the others could be making two trips to Georgia in the coming weeks, first to surrender and then later for an arraignment.

Mr. Trump’s Georgia-based legal team did not immediately respond to a text message seeking comment.

The relatively tight calendar Ms. Willis is proposing could be complicated by pretrial maneuvering by the defendants. Already on Tuesday, lawyers for Mr. Trump’s former chief of staff, Mark Meadows, filed a quick motion to transfer the case from state to federal court. 

They said all the actions he took were in service to his White House role, foreshadowing an argument that the Constitution makes him immune from prosecution. A federal judge on Wednesday set a hearing on the matter for August 28.

There is widespread speculation that Mr. Trump and perhaps others could also try to move the case to federal court.

The proposed order also suggests other deadlines for the case, including for discovery and motions. Ms. Willis’ filing says she selected the dates “(i)n light of Defendant Donald Trump’s other criminal and civil matters pending in the courts of our sister sovereigns,” saying this timetable wouldn’t conflict with those other courts already scheduled hearings and trial dates.

Mr. Trump is already scheduled to stand trial in March in the separate New York case involving dozens of state charges of falsifying business records in connection with an alleged hush money payment to an adult film actress 

He’s scheduled to stand trial in May in the federal case brought by special counsel Jack Smith alleging he illegally hoarded classified documents at his Mar-a-Lago estate and thwarted government efforts to return them.

And Mr. Smith’s team is seeking a January 2 trial date in the federal case over Mr. Trump’s efforts to overturn the election.

The expansive Georgia indictment, which is nearly 100 pages long, uses the state’s racketeering law to accuse Mr. Trump and others of participation in a conspiracy, detailing dozens of actions they are alleged to have taken in an attempt to keep him in power.