Lefties still believe the Rosenbergs and Alger Hiss were innocent of espionage and deny that Teddy Kennedy asked the Kremlin for help in defeating President Reagan. When your entire worldview is based on accumulation of political power, the desired goal justifies any means necessary to achieve it.
Here is a view of Obama's malfeasance, conspiracy and collusion with Russia from a left of center news source.
https://www.politico.com/magazine/story/2017/07/24/why-its-hard-to-take-democrats-seriously-on-russia-215415