By claiming that "having the votes" means the investigation should be over.
That's a bullshit misrepresentation of procedure, and I don't believe for one second you actually believe that nonsense.
This already got answered. So I'll repeat.If they have the votes then they have the evidence, or do you say they have the votes before they have the evidence? which is it, it can only be one or the other.
Just because you've got someone dead to rights on one murder, you keep investigating the details of the other 5 you still suspect them of committing.
They have enough evidence to vote to impeach. They do not have all the evidence, so the investigation continues. Because impeachment isn't the end of the process. It's the first step. There's criminal investigations and charges that come afterward.
You're just lying about basic concepts and procedure. No investigation halts itself halfway and says "okay, that's enough".