After a year nobody can describe even a mechanism by which 'Russia interfered with the election.'  Indeed, nobody even tries.  All I see are some nebulous attempts to imply that some media platforms (e.g., RT) allowed some political stories which were negative about one political party (never mind that they tended to be perfectly true.)

To the extent that there was any genuine hacking into the election infrastructure itself, it looks fairly clear that it was Obama's DHS by a quick peak at the IP address information.  Some states called the feds out on the attacks.  It's also fairly clear that the vote tabulation systems are flawed by design at a variety of points.

I actually really like the idea that American politicians should be held to a standard of having only transparent conversations with 'non-American entities'.  That would include ALL other nation states, all media outlets, all tax exempt foundations and NGOs, all corporations, and all individuals who hold citizenship in any other country.  Going after anyone who had anything to do with Russia or anyone who was a Russian sets a precedent that could and should apply to very many other entities.