Re(5): Can Sanders be Stopped from getting the Democratic Nomination? Posted on 2/23/2020 at 21:09:52 by Bill Crawford, (14)
Will,
The below-linked (lengthy) Wikipedia writeup discusses what the Russians did in the 2016 election.
I assume that their activities would be similar in the 2020 election, although not as intense at this point in the 2020 election cycle.