I don’t see how this is legal?

Oh, sweet summer child. This is the USA we're talking about. Potus shows every day that him being pissed off about something basically makes it illegal unless you have more money than him. It only follows that his subjects take his example.

There’s no way Tesla would win in court under any sane judge.

And more than half the legal system has been either replaced or intimidated into submission.

Sorry if I sound terminally pessimistic here. In January I still might have held out some hope for a peaceful solution, but by now it's clear: this country will collapse, one way or another. This is not sustainable, and there will be no peaceful transition of power. I mean they're already putting all sorts of measures in place to make sure they "win" the next elections. And even if Democrats could win somehow - what then? The country is already fucked up. IMO, beyond repair. It needs to be replaced.