"...there has been a line of continuity from the collusion of Russian nationalists with Hitler in the early 1920s, to Joseph Stalin’s secret pact with the Nazi leader in 1939, to President Vladimir Putin’s conduct in Ukraine and his interference in the elections in the United States."
Some historical perspective: https://www.washingtonpost.com/news/made-by-history/wp/2017/12/01/what-russian-collusion-with-hitler-reveals-about-interference-in-the-2016-election/?utm_term=.0705f5183d4d