Soft support does work both ways indeed. Mr. Trump Facebook campaign was very effective in convincing some soft D’s to stay home in November 2016. Both parties will be playing the game to their best abilities. They’ve been doing it for decades. What attacking opponent’s soft support has do with being good in government is beyond me, but it is strange world.

According to polls, 40% of Americans support Mr. Trump. And there seems to be 250m eligible voters in USA. When I do the math that means 100m votes for Mr. Trump. He didn’t get that number in 2016, and he won’t get it in 2020. There is a lot of soft R (or T) out there that can be attacked.

This is the one problem with polls: they don’t measure the commitment to make the trip to the polls. Soft support, on either side, can be convinced to stay home.

Regardless of who wins the D nomination, some of the losing side(s) will become soft support for the R’s to pluck off.

But they won’t be voting for R. They will just not vote. Which is almost as good as a vote for the R’s.

Soft support seldom changes sides. They just don’t vote.