In 2016, the dems were so sure the polls were correct about Hillary winning by a landslide, they decided to cut back on the ballot cheating. They will know better in 2020.
The stunned looks in everyones face at the end of the night and all the late reporting of votes to give time to manufacture even more supports this
The stunned shock and fear was not simply due to the fact that Trump won, it was due to the knowledge of just how big the margin of fraud was in 2016 but that enough people still turned out for Trump to beat the margin of fraud.
I can easily see Milwaukee, Detroit and Philadelphia setting records for turnout. 150% of registered voters will cast a vote for the (D) instead of their usual 110%