Of course, the Senate report, led by Republicans reaffirmed much of the Russian threat. The factual proven evidence of close dependency of Trump family interests on Russian funding is quite well documented in the various Deutsche Bank documents. The capturing and defenestrating fo the Muller report data is itself quite obvious. This should never have been partisan and only became so when Trump, Manafort, and Flynn coalesced. It's pointless to provide the documentation to people who've already decided. I admit I do not respect Trump much, primarily because one of my first tasks as a commercial maker was coping with the write-off of hundreds of millions of dollars that Trump defaulted on. he was a crook then, is a crook now and seems to have been one before he even made the Great Move from Queens to Manhattan.
As for your last statement I must disagree also. Trump does not represent the Right, he's a populist with strong flavor fo fascism. The Right and the Left in the US have usually managed to coexist, with friction and smoke, but rarely fire. The basic principles of democracy have usually had strong support from all sides. Both the Left and the Right have tended to work to produce honest and fair elections, with gerrymandering and the occasional other act of voter suppression, but almost always without denigrating actual elections. So I strongly disagree with your assertion. That does not mean that people on all sides, when they gain the upper hand, fail to resist the temptation to protect themselves. Were that not so there would never have. been an electoral college devised like the one the US still has.
Even with those defects the US has generally moved, from inception, towards a more perfect union.
That faith is the principle that is now under greatest threat. When mail ballots suddenly turn into an allegation of huge fraud when all sides have depended on them with convince for centuries (literally) we know the system itself is under threat. Both the Left and the Right agree on that one.
The Donald sees that as being illegitimate along with Barack Obama's Birth and Kamala Harris' eligibility. Those three things fit well with Qanon, which even Senator Graham just called "batshit crazy'.
Again, all this has exactly zero to do with Left and Right. It has everything to do with Right and Wrong.