There are more us than them.
Um, if by "us" he means open-borders-enthusiastic, gender-confused, Medicare-for- illegals-supporting, success-punishing, income-redistributing, student-loan-forgiving far-left moonbats, I think he is seriously deluded.
If the Dems nominated a centrist I would be more concerned about 2020; but every time one of the candidates opens his/her mouth some lunatic promise to pander to some special interest group falls out, and the VAST majority of voters are completely appalled.
The problem is that the extremes (of both parties) are choosing the candidates, and we are often left with a choice of "bad" or "worse."