[SAI_Peregrinus]

The legislative branch makes the laws. The Judicial branch judges whether laws were broken. The executive branch has the power to enforce laws (or to not enforce them, as they see fit).

The current executive branch will not enforce laws against itself, and nobody else is legally allowed to enforce the laws, so all the courts & congress can do is write strongly worded letters.

[tsimionescu]

You're almost right. The thing is that Congress absolutely has the power to impeach the president and strip them of all legal office. Of course, most of Congress is perfectly happy with what's going on, so this won't happen.