Joe Biden was one of the few people who were involved in the early secret meetings into Russian collusion. It was handled at the highest level by people at the highest positions of power, which is extremely unusual. AG Bill Barr commented on this previously:
The thing that’s interesting about this is that this was handled at a very senior level of these departments. It wasn’t handled in the ordinary way that investigations or counterintelligence activities are conducted. It was sort of an ad hoc, small group — and most of these people are no longer with the FBI or the CIA or the other agencies involved. I think there’s a misconception out there that we know a lot about what happened. The fact of the matter is, Bob Mueller did not look at the government’s activities.
The lengthy Washington Post article from 2017 detailed the closed circle of Obama administration officials who were involved in overseeing the initial efforts related to the Russia investigation — a circle than was narrowly widened to include Biden, according to the newspaper report.
According to the newspaper, in the summer of 2016, CIA Director John Brennan convened a “secret task force at CIA headquarters composed of several dozen analysts and officers from the CIA, the NSA and the FBI.”
The Post described the unit as so secretive it functioned as a “sealed compartment” hidden even from the rest of the U.S. intelligence community; a unit whose workers were all made to sign additional non-disclosure forms.
The unit reported to top officials, the newspaper documented:
They worked exclusively for two groups of “customers,” officials said. The first was Obama and fewer than 14 senior officials in government. The second was a team of operations specialists at the CIA, NSA and FBI who took direction from the task force on where to aim their subsequent efforts to collect more intelligence on Russia.