The Grand Unification Theory of All trump Scandals:
It's about the MONEY. As Charles P. Pierce at Esquire points out:
It simply comes down to money: the Russians, the meetings that mysteriously slipped everyone's minds when they were testifying before Congress or filling out disclosure forms, the vanishing tax returns, the emoluments mess, the bizarre attraction to wealthy overseas authoritarians, the unshakable presence of Michael Flynn. All of it, simple American greed magnified by a culture of celebrity and, through a fluke presidential election, dropped like a dead squirrel in a chimney into the world's greatest democracy—and, as a result, stinking up the entire joint.
There are other motives for why trump is in this game: Revenge against Obama's humiliations of him; Pride and Ego of being a God-Emperor Dictator in the Oval Office; The Infamy of being in the history books as a
He'll still be in this to get the big tax cuts for his income bracket, of course. trump is likely trying to figure out a way of robbing the Treasury as much as possible before he's forced out by the Russia investigations and pending Obstruction charges. And trump - through his son-in-law Jared and the rest of the trump crime family, for God's sake, he STOLE SOME OTHER FAMILY'S COAT OF ARMS - is shaking down foreign countries for political access as fast as the private meetings can be arranged.
This is all the last big con for trump. His casinos have failed, his steak and wine brands have failed, his hotels are failing, his fake university failed, everything except his inflated celebrity status has failed. Being President was the biggest scam he could hope for.
The Republicans let him play the game because they thought they could control the scam. But trump is better in one regards: he's a better con artist, and he tricked them for all it was worth.
And we're all paying the goddamn price.