Pretty much all the rhetoric and behavior we saw and heard from the Right during the Obama years has been replicated by the Left under Trump:
1. Rooting for economic malaise. They'll deny it of course, but it's manifestly clear that they'd like it. Some admit it.
2. Catastrophizing. Just like under Obama, we're this close...this close...to the end of America as we know it. Heck, he (Obama/Trump) may have ruined it already.
3. "Why can't you stupid people see what's good for you?!?" Summed up the rhetoric and attitude of the Right after Obama's elections and the rhetoric and attitude from the Left after Trump's election.
4. Everything Obama/Trump does is something unprecedented. Some unprecedented power grab which means Obama/Trump is a dictator. Heck, Trump might not voluntarily leave office if he loses.
5. Perpetual cries for impeachment.
We can go on.