But Mr. Barr’s public statements about Mr. Durham’s investigation also helped foster perceptions that he had found something big. In April 2020, for example, he suggested in a Fox News interview that officials could be prosecuted and said: “The evidence shows that we are not dealing with just mistakes or sloppiness. There is something far more troubling here.”
Mr. Trump and some of his allies in the news media went further, stoking expectations among his supporters that Mr. Durham would imprison high-level officials. Those include the former directors of the F.B.I. and C.I.A., James B. Comey and John O. Brennan, and Democratic leaders like Barack Obama, Hillary Clinton and Joseph R. Biden Jr.
In fact, Mr. Durham only ever developed charges against two outsiders involved in efforts to scrutinize links between Mr. Trump and Russia, accusing them both of making false statements to the F.B.I. and treating the bureau as a victim, not a perpetrator.
While in office, Mr. Barr worked closely with Mr. Durham, regularly meeting with him, sharing Scotch and accompanying him to Europe. When it became clear that Mr. Durham had found no one to charge before the election, Mr. Barr pushed him to draft a potential interim report, prompting Mr. Durham’s No. 2, Nora R. Dannehy, to resign in protest over ethics, The New York Times has reported.
Against that backdrop, the first phase of Mr. Durham’s investigation — when he was a U.S. attorney appointed by Mr. Trump, not a special counsel — illustrates why there is a recurring public policy interest in shielding prosecutors pursuing politically sensitive matters from political appointees.
But the second phase — after Mr. Barr made him a special counsel, entrenching him to remain under the Biden administration with some independence from Attorney General Merrick B. Garland — illustrates how prosecutorial independence itself risks a different kind of dysfunction.
The regulations empowered Mr. Garland to block Mr. Durham from an action, but only if it was “so inappropriate or unwarranted under established departmental practices that it should not be pursued” and required him to tell Congress. Mr. Garland gave Mr. Durham free rein, avoiding Republican accusations of a cover-up.
