The sad whiny petty hypocrisy of of litigiousness slimy weasels.
It's his comfort zone, so when he feels anxious or knows he's in trouble, this is his knee jerk comfort-zone. He calls in his lawyers and demands the courts make things right for him.
And can't really blame him. He's been pulling this grotesque shit his entire shitty vindictive sociopathic life.
It's how he deals with reality.
I imagine when Trump is on his deathbed, he'll call in his lawyers and order them to sue Death.