The FBI made 17 errors and omissions in the investigation of Team Trump. The Department of Justice Inspector General also found that the FBI committed 51 violations of the so-called "Woods procedures." The "Woods Procedures" are the formalized FBI fact-checking system for the submission of FISA Warrants.
It simply defies logic to believe that all of the mistakes happened by chance. Former U.S. Attorney Joe diGenova has stated on multiple occasions that there was "a brazen plot" on the part of senior officials at the FBI and the Justice Department to help get Hillary Clinton elected and to smear Donald Trump in order to defeat him. And, in the event that he won, frame him with a crime and force him from office. That's almost what happened.
So far nobody has found "the plot" in writing. But even mafia dons know you don't put anything like that in writing. So, you wouldn't expect that from "the best and the brightest" of the Scheme Team. Whether they were formal collaborators or not, all were guilty of trying to sway the outcome of an election. And there isn't anything more un-American than that.