Slick lawyers and they did it on purpose.

Farnan pointed out that at a press conference on April 18, 2019, releasing Mueller's report, Attorney General Bill Barr praised the special counsel for uncovering Russian interference, insisting that that part of the investigation was justified.

"Therein lies the basic design flaw of Durham's probe: Nobody has gone to jail because Republicans stupidly conceded phony Russian intrigue and the plotters have said they were justified to investigate it," Farnan wrote.

"This insidious false flag operation continues to do political damage to President Trump because those in power have been duped by The Russia Lie."

Failure by design. Only the leadership of the Republican party and the perpetual bureaucrats are lower and more evil than the Democrats. The whole bunch in DC are slime.

https://www.wnd.com/2020/10/russia-lie-doomed-durham-investigation/