I have read it. You should try. Then look at
the Federalist papers maybe? The
debates at the convention are interesting as well. Also the
debates about whether to ratify it once written.
Gives you a good sense of what they wrote and why.
This might explain why you are having trouble. You seem to be assuming the text of the constitution is following some kind of narrow constrained logic. For instance, you seem to think "and" is a logical conjunction and not a grammatical one. If I say I like redheads, blondes, and brunettes I am not saying that someone has to have all three hair colours for me to like them.
This whole argument that they can't secure a conviction to bar him from previous office because they can't secure a conviction to remove him from office first seems to be tied together by this idea of strict formal logic which isn't applicable.
It's ok. I really am starting to think it is a language problem he has, trapping him in this kind of formal logic analysis instead of reading the Constitution as written.