More than 1,000 former US Justice Department officials have called for Attorney General William Barr to resign over his handling of the trial of a long-time adviser of President Donald Trump.
The former officials, who served under both Republican and Democratic administrations, criticised Mr Barr, the country's top law enforcement officer, for overruling his own prosecutors in a case that has prompted accusations that the Trump administration has been weakening the rule of law.
The Justice Department abandoned the prosecutors' initial recommendation to give the veteran Republican operative Roger Stone seven to nine years in prison after he was found guilty in November of seven counts of lying to Congress, obstruction and witness tampering, prompting all four of the prosecutors to quit the case.
"It is unheard of for the department's top leaders to overrule line prosecutors, who are following established policies, in order to give preferential treatment to a close associate of the president, as Attorney General Barr did in the Stone case," said a letter published on the website Medium.
"Those actions, and the damage they have done to the Department of Justice's reputation for integrity and the rule of law, require Mr Barr to resign," the letter said.
The Department of Justice did not immediately respond to a request for comment.
Mr Trump had heavily criticised the original sentencing request for Stone and the Justice Department subsequently abandoned it.
Instead it decided to make no formal sentencing recommendation.
Democrats blasted the department's shift in the high-profile case involving Stone, whose friendship with Mr Trump dates back decades.
Stone's trial arose from former special counsel Robert Mueller's investigation that detailed extensive Russian interference in the 2016 election to benefit Mr Trump's candidacy.
Mr Barr said in an interview with broadcaster ABC that Mr Trump's criticism of those involved in the Stone case "make it impossible for me to do my job".
When the subject of Attorney General William Barr comes up these days, it's hard not to think of John McCain. Not the late senator, mind you, but the USS John S McCain, the naval destroyer named after his father and grandfather.