I wish we'd stop calling it a quid pro quo (which it certainly was) and, instead, call it bribery, extortion, and blackmail. It will be a lot easier for dopes like Pekin and the rest here to understand why this was bad if we use those words.
Just in case you feel that definitions are important.
Merriam-Webster
1: the act or practice of extorting especially money or other propertyespecially : the offense committed by an official engaging in such practice
Definition of bribery
: the act or practice of giving or taking a bribe
Definition of blackmail
1: a tribute anciently exacted on the Scottish border by plundering chiefs in exchange for immunity from pillage
2a: extortion or coercion by threats especially of public exposure or criminal prosecution
b: the payment that is extorted
I hate to ask the impossible, but can you point to where Trump did anything that fits any description?