The contrast between those two — Donald Trump and Barack Obama is stark, not just on policy but on larger themes like goodness, virtue and purpose. Restoring those things to the White House would banish what Obama called in his endorsement video the “corruption, carelessness, self-dealing, disinformation, ignorance and just plain meanness” of the Trump tenure.

The secret weapon hidden in Obama’s endorsement of Biden (opinion) – CNN

Interesting theory.