When the law is working the way it’s supposed to work, the prosecution decides what the charge is and then the jury decides the verdict. In the case of the Resistance vs. Trump, the verdict has always been known in advance: Guilty. It’s the charges which keep changing.
When the verdict never changes, but the charges keep changing, that’s a thumb on the scale of justice.
That’s what we’ve seen in recent weeks with Trumpeachment 2.0: Ukraine edition. New charge, collusion with Russia is out, collusion with Russia’s enemy is in. Only the verdict remains the same.
Remember: Impeachment is an extraordinary legal step, designed to investigate under-investigated matters. By what objective measure could anyone argue that Trump has been under-investigated?
Oh, I forgot, he will always be seen as under investigation, because no matter what the official charge is, the real offense is that he won the election.