The articles of impeachment read like articles of censure. You don’t impeach a president for resisting Congressional subpoenas.
A law that sentences a person, or group of people, to suffer punishment for a crime without being able to exercise their judicial rights in defending themselves.
The U.S. Constitution forbids Bills of Attainder in Article 1, Sections 9 and 10.
The ban extends to both the state and federal governments. The fact that the ban extends to the states shows just how important those who drafted the Constitution believed this issue to be. There are two main reasons why the U.S. Constitution Forbids Bills of Attainder:
The ban reinforces the separation of powers by forbidding the legislative branch of government from engaging in judicial or executive acts.
The ban supports the concept of due process, one of the rights attributed by the Constitution to every American citizen.
But hell, since when has the idiot dems upheld what is in the US Constitution??