I don’t think there is any doubt but that the Republicans are planning to steal the 2020 election. If they succeed, my guess it will be done so that it is plain sight, but nonetheless deniable enough to pass muster in the present partisan Supreme Court. It will be the end of our constitutional system if it happens, but maybe that’s the point.
I don’t think they’ll take a one size fits all approach to what will definitely be a conspiracy. (Remember, if they accuse others of something-and they’re always accusing the left of conspiring-they’re doing it themselves. Besides the multitudinous things I can’t predict, the mails will be a part of it, as will shutting polling places, etc.
Given recent events in places like Kenosha and Portland, and a bit of past history in previous elections, it seems like a good bet that armed right wing “militias” will show up at selected polling places to intimidate Democratic voters, and that little or nothing will be done to stop them. The only question is whether they will be left to their own devices to pick their spots, or whether the Trump campaign will coordinate with them. I’m betting that there’ll be direction from the Trumpers. After all, if they manage to pull it off, they won’t have to worry about being criminally prosecuted, and if they don’t pull it off, a lot of they were going to go to jail anyway.