The Left in America hates, loathes, and despises President Trump. Why? Because he is not one of them, and he won. He was not supposed to win. How could he have prevailed? The leftists had it wrapped up. All the polls said so, just as they said climate change Labor candidate Shorten was a shoe-in in Australia. Oops.
Trump's victory in the 2016 election was a cataclysmic shock to the establishment whose members believed, with every fiber of their being, that they ran things, all things governmental.
The denizens of D.C. do not pay much attention to party affiliation. They all abided by the Beltway rules: never rock the boat. Get elected, do the bidding of your donors, and get rich. That's it for the bulk of them, but thankfully not all of them.