I'm sorry, but as a lawyer I would love to try a case (every lawyer would) where the evidence of quid pro quo included:
1. I have the favor asked for by the executive of an organization in a written summary of the conversation that is detailed, accurate, and signed-off on by multiple people.
and
2. The President and the person responsible with ordering OMB to withhold the aid (his Chief of Staff) both stating on national television that yes they asked for the "investigation" and/or yes on quid pro quo.
and
3. The President admitting to his point person in Europe that the only thing that matters is the announcement of an investigation not an actual investigation (Pretext).
I mean those are undisputed facts.
We can say that's not an impeachable offense, but we can't say no quid pro quo existed or that a crime wasn't committed.