The number of voers increased by a large margin over 2016.
Voers? You're an idiot. The number of potential voters in this country DID NOT change that much in only four years. What changed was the thirty or so leftwing activist organizations named by Time Magazine who all actively went out to get as many people to sign up to vote and to vote for Biden to ensure a Trump loss as humanly possible. They have all openly admitted it. They didn't just get airhead non-voters to register, they made sure they were committed to voting for Biden. That is called vote rigging.
And to think you spent three years and 30 million dollars because a few Russians ran ads in Facebook.
There was a definite increase in the number of votes cast. The fact is that they did not have to work hard to get voters out to vote against Trump. getting voters out to vote is not vote rigging.
Because the Russians hacked the DNC servers and launched a successful phishing attack on Podesta. Bscause Trump campaign officials gave information to a Russian with ties to Russian intelligence.