WASHINGTON — It’s the largest prosecution in Justice Department history, with reams of evidence, harrowing videos and hundreds of convictions of the rioters who stormed the U.S. Capitol on Jan. 6, 2021. Now Donald Trump’s return to power has thrown into question the future of the more than 1,500 federal cases brought over the last four years.

Jan. 6 trials, guilty pleas and sentencings have continued chugging along in Washington’s federal court despite Trump’s promise to pardon rioters, whom he has called “political prisoners” and “hostages” he contends were treated too harshly.

In a statement Monday, Attorney General Merrick Garland said Justice Department prosecutors “have sought to hold accountable those criminally responsible for the January 6 attack on our democracy with unrelenting integrity.”

“They have conducted themselves in a manner that adheres to the rule of law and honors our obligation to protect the civil rights and civil liberties of everyone in this country,” Garland said.

More than 1,500 people across the U.S. have been charged with federal crimes related to the deadly riot. Hundreds of people who did not engage in destruction or violence were charged only with misdemeanor offenses for entering the Capitol illegally. Others were charged with felony offenses, including assault for beating police officers. Leaders of the Oath Keepers and the Proud Boys extremist groups were convicted of seditious conspiracy for what prosecutors described as plots to use violence to stop the peaceful transfer of power from Trump, a Republican, to Joe Biden, a Democrat.

About 250 people have been convicted of crimes by a judge or a jury after a trial. Only two people were acquitted of all charges by judges after bench trials. No jury has fully acquitted a Capitol riot defendant. At least 1,020 others had pleaded guilty as of Jan. 1.

More than 1,000 rioters have already been sentenced, with over 700 receiving at least some time behind bars. The rest were given some combination of probation, community service, home detention or fines.

The longest sentence, 22 years, went to former Proud Boys national chairman Enrique Tarrio, who was convicted of seditious conspiracy along with three lieutenants. A California man with a history of political violence got 20 years in prison for repeatedly attacking police with flagpoles and other makeshift weapons during the riot. And Oath Keepers founder Stewart Rhodes is serving an 18-year prison sentence for seditious conspiracy and other offenses.

More than 100 Jan. 6 defendants are scheduled to stand trial in 2025, while at least 168 riot defendants are set to be sentenced this year.

The FBI has continued to arrest people on Capitol riot charges since Trump’s electoral victory in November. The Justice Department says prosecutors are still evaluating nearly 200 riot cases investigated by the FBI, including more than 60 cases in which the suspects are accused of assaulting or interfering with police officers who were guarding the Capitol.

Citing Trump’s promise of pardons, several defendants have sought to have their cases delayed — with little success.

In denying one such request, U.S. District Judge Royce Lamberth, who was nominated to the bench by President Ronald Reagan, a Republican, wrote: “This Court recently had the occasion to discuss what effect the speculative possibility of a presidential pardon has on the timetable for a pending criminal matter. In short: little to none.”

Trump has vowed to begin issuing pardons of Jan. 6 rioters on his first day in office. He has said he will look at individuals on a case-by-case basis, but he has not explained how he will decide who receives such relief.

Many judges in Washington’s federal court have condemned the depiction of the rioters as “political prisoners,” and some have raised alarm about the potential pardons.

“No matter what ultimately becomes of the Capital Riots cases already concluded and still pending, the true story of what happened on January 6, 2021 will never change,” Judge Lamberth recently said in a statement when handing down a sentence.