I think Jonathan Chait has it about right in this analysis of the latest ugly Washington showdown, which he refers to as a kind of "soft impeachment." I'd sharpen that point and call it the continuation of a rolling coup d'etat, a treacherous but well-planned strategy to undermine -- small-d/cap-D, take your pick -- democratic government that was first manifest large with the outrageous impeachment of Clinton and the theft of the 2000 presidential election. But it actually started with Nixon and Agnew.
Dangerous waters we're in. Here's Chait's piece in New York Magazine: