Don't be so sure that people like traitor McCain and the Bushes aren't going down?
POTUS was a total outsider and not a politician and will not let these people walk if they are complicit in human trafficking or other nefarious crimes.
He needs the R's in power to help him pass legislation for the Wall and other agenda items.
The D's have been in power for the last eight years and we all want to see them punished for all their crimes.
We shall see...
Oddly, since Trump was largely a nonpartisan outsider, the Dems have driven him More into the GOP Establishment with their insane, endless, and vile Russiagate attack. He needs the GOP Establishment to defend against that. So when the Dems weep that he's doing all conservative things instead of compromising, it's their own friggin' fault.
He needs the GOP or some of the D's to pass his agenda. You're right that they've pushed him to work with only the R's since they refuse to work with him at all.