Trump's success can really be laid at the feet of a single failure in US Government: the existence of the Senate.

Every system we have is designed to be hands-off when it comes to Presidential authority. Why? Because imposing limits on the President is supposed to be the Senate's job. The House impeaches, the Senate convicts.

And the Senate is absurdly biased. A few thousand voters in Wyoming are valued over a few million voters in New York.

It was inevitable that the Senate would eventually be captured by minority rule, and that Senators would refuse to hold their guy accountable.

Which leaves the rest of government without a lot of options.