I think the whole “Russia Collusion” was invented by the DNC as a cover for the DNC email leak. They knew they had a leaker, not a hacker. Out of embarrassment, they fabricated a story about “guccifer 2.0”. Once they put this story out they had to go all the way with it - since the RNC was not hacked, it must have been at the behest of the Trump campaign.
The leak was plugged, his name was Seth Rich.
That’s what they are covering up.