Keeping this to post under all those comments saying there was nothing to "Russiagate".
"Russiagate" is commonly used to refer to the accusation that Trump colluded with the Russian state to determine the outcome of the 2016 election. The Special Counsel investigation found no evidence of collusion. Or is everything involving Russia now its own "Russiagate"?
So the Trump campaign welcomed the Russian election interference, of which there was a breathtaking amount[2]. It's also telling that Trump, who never has spared an unkind word for anyone, has never spoken ill of Russia for his entire term.
It's also worth noting that the special counsel was never allowed to indict the President, or even say that indictable conduct occurred, due to Justice Department policy. The absolute strongest available language that they could use was that their report didn't exonerate the President, and that's exactly what the report said.
[1] https://www.latimes.com/politics/la-na-pol-mueller-report-tr...
[2] https://en.wikipedia.org/wiki/Timeline_of_Russian_interferen...