I’d assume they would work with Congress to provide incriminating evidence to get him removed.

I don't think so, for instance the Mueller report d otherwise. All the intelligence services of USA are dominated by Republicans the same way military and police are. They'll do nothing against Trump. To Republicans party comes first and country second. That seems blatantly clear now that a proven traitor is leading the Republican nomination by far.

I wish you were right, but I am left with very little faith in the checks and balances of American democracy after the Trump presidency.

The rest of what you write, I agree on 100%. 😀