There are basically two ways to run against Trump: you can ignore him and try to sell the public on a vision for a better America; or you can focus your energy on prosecuting him for his innumerable sins. The two approaches are mutually exclusive.
You might think initially that the angry approach would be associated exclusively with realos, and the uplift with fundis, but you would be wrong. Beto, for example, is an uplifting realo, while Sanders and Warren are angry fundis.
Which approach will the Democrats choose in 2020? Historically, they have preferred youthful candidates with an uplifting message, but they’ve never run against anyone like Trump before. My best guess is that anger will play well with the blue base this time. We’ll see, probably as early as the first debate.