Senate Democrats pressed Justice Department officials on Wednesday to explain the firing of the pardon attorney, Elizabeth G. Oyer, who was dismissed amid a disagreement with her superiors about whether to restore the actor Mel Gibson’s right to own guns.
Ms. Oyer was one of a number of senior career officials at the Justice Department who were abruptly ousted this month. No reason was cited for the dismissals, but Ms. Oyer told The New York Times that senior department officials pressured her to add Mr. Gibson, an outspoken supporter of President Trump, to a list of people with past convictions who could nevertheless have their gun rights returned to them.
The campaign, she said, incited fears that she could be fired over it. Senior Justice Department officials have said the dispute was not the reason for her dismissal.
Democrats on the Judiciary Committee, including Senator Richard J. Durbin of Illinois, sent a letter to Attorney General Pam Bondi seeking answers about Ms. Oyer’s firing. Her dismissal, they added, was “particularly troubling in light of the Trump administration’s purge of public servants, seemingly based on whether they are willing to carry out the president’s agenda of political retribution against his perceived enemies.”
Senate Democrats are now asking Ms. Bondi to provide an explanation for Ms. Oyer’s firing, the names of the people involved in the move and any records or emails that relate to the decision.
“It is vitally important that D.O.J. attorneys be permitted to pursue justice for the United States of America and the American people,” the Democrats wrote, “not serve as the personal law firm to President Trump, handing out legal favors to his rich and famous friends.”
Mr. Gibson has not been able to buy a firearm since he pleaded no contest in 2011 to misdemeanor battery against a former girlfriend.
The Trump administration has decided that the Justice Department should create a path for gun rights to be restored to some people with convictions. During internal department conversations on the subject, Ms. Oyer said she was particularly worried about giving gun rights to people with domestic violence convictions.
“This isn’t political,” she said. “This is a safety issue.”
Last week, the department moved forward with its plan to restore gun rights to some convicts, publishing a notice in the Federal Register about the initiative. Still unclear is exactly what criteria will be used to decide who is eligible. A senior Justice Department official has suggested this is only the first of a number of steps the administration plans to make on guns, including making it easier for people to buy silencers, also known as suppressors.
