Congress is capitulating it's duties at least partially because anyone who tries to block Trump as a republican gets voted out. Oh sure, they stirred this shit up for 50 years and just reaping what they sew, but the train is free-running now and they can't really stop it.

The Voters want a Trump King. A government cannot ignore it's own people forever.

If the voters reward corrupt and horrific behavior, and punish law and order behavior, what the hell can you do about that?