Former President Donald Trump said Tuesday that he has received a letter informing him that he is a target of the Justice Department's investigation into efforts to undo the results of the 2020 presidential election.

Trump made the claim in a post on his Truth Social platform, saying he received the target letter on Sunday night. Such a letter can precede an indictment; Trump got one ahead of being charged last month in a separate investigation into the mishandling of classified documents.

Trump said he was given "a very short 4 days to report to the Grand Jury," which he claimed "almost always means an Arrest and Indictment."

After losing the 2020 presidential election, Trump made a number of false statements about widespread voter fraud as he and his allies sought to challenge and overturn the results of the election, despite current and former members of his own administration stating that those claims were without merit.

Those efforts ultimately culminated in the Jan. 6, 2021, insurrection, when a mob of his supporters marched to the U.S. Capitol and stormed the building in an effort to disrupt the counting and certification of Electoral College votes. More than 1,000 people in nearly all 50 states have been arrested in connection with the riot.

Prosecutors have questioned multiple Trump administration officials before a grand jury in Washington, including former Vice President Mike Pence, who was repeatedly pressured by Trump to ignore his constitutional duty and block the counting in Congress of electoral votes on Jan. 6.

They’ve also interviewed other Trump advisers, including former Trump lawyer Rudy Giuliani, as well as local election officials in states including Michigan and New Mexico who endured a pressure campaign from the then-president about overturning election results in their states. A lawyer for Giuliani, who participated in a voluntary interview, said Tuesday that he did not receive a target letter.

Trump has consistently denied wrongdoing and did so again in his Tuesday post, writing, “Under the United States Constitution, I have the right to protest an Election that I am fully convinced was Rigged and Stolen. just as the Democrats have done against me in 2016, and many others have done over the ages.”

A spokesman for special counsel Jack Smith, whose office is leading the investigation, did not immediately return an email seeking comment. Smith also led a separate probe into Trump's alleged mishandling of classified documents, which yielded more than three-dozen felony charges for the former president. He has pleaded not guilty to all charges in the documents case.

A hearing in the documents case was set for Tuesday.

Trump, who has attacked Smith repeatedly throughout the course of the documents investigation, called the special counsel "deranged" in his post on Tuesday.

"THIS WITCH HUNT IS ALL ABOUT ELECTION INTERFERENCE AND A COMPLETE AND TOTAL WEAPONIZATION OF LAW ENFORCEMENT!" Trump charged. "It is a very sad and dark period for our nation!" 

Prosecutors have cast a broad net in their investigation into attempts by Trump and his allies to block the transfer of power to Joe Biden.

Trump is also facing a separate criminal investigation in Georgia, where prosecutors are looking into efforts to overturn the state's 2020 election results. Fulton County District Attorney Fani Willis is expected to announce charges in the coming weeks.

Despite the separate criminal cases, Trump is still firmly the frontrunner in the 2024 Republican presidential primary. The former president is expected to be in Iowa on Tuesday, where he will tape a town hall with Fox News.

Former Arkansas Gov. Asa Hutchinson, a prominent Trump critic in the 2024 race, urged the former president to drop out of the race in the wake of Tuesday's news.

"I have said from the beginning that Donald Trump's actions on January 6 should disqualify him from ever being President again," Hutchinson said in a statement, adding that his previous experience as a prosecutor gives him insight into the "severity of Grand Jury investigations and what it means to be targeted by such an investigation."

"While Donald Trump would like the American people to believe that he is the victim in this situation, the truth is that the real victims of January 6th were our democracy, our rule of law, and those Capitol Police officers who worked valiantly to protect our Capitol," Hutchinson added. "Anyone who truly loves this country and is willing to put the country over themselves would suspend their campaign for President of the United States immediately. It is disappointing that Donald Trump refuses to do so."

But allies of the former president, including House Speaker Kevin McCarthy, dug in on their support. McCarthy baselessly accused the Biden administration of weaponizing the Justice Department because of Trump's polling numbers.

"Well, I guess under a Biden administration, Biden America, you'd expect this," McCarthy told reporters at the Capitol. "If you notice recently, President Trump went up in the polls and was actually surpassing President Biden for reelection. So what do they do now? Weaponize government to go after their No. 1 opponent. It's time and time again, I think the American public is tired of this. They want to ... see equal justice, and the idea that they utilize this to go after those who politically disagree with them is wrong."

New York Rep. Elise Stefanik, the No. 3 House Republican, similarly called the news "another example of Joe Biden’s weaponized Department of Justice targeting his top political opponent, Donald Trump."