Turley is a Lib; but a brilliant legal analyst.
He’s only saying that (with two “if proven* qualifiers in the same sentence; that a ‘quid pro quo’ is impeachable if proven - which - strictly speaking, is true.
He then goes on to destroy the Dems strategy and entire impeachment premise.
I see it not as a Constitutional crisis of the checks and balances between the Legislative and the Executive but more as a "Test" of those boundaries.
Up until now, the opposition has never had the balls (or stupidity) to pursue election nullification based on, basically, nothing more than their unhinged desire to do so. Up until now the opposition always had an actual crime to use as a foil while attempting to crush their political rival in a co-equal branch.
And even in those past situations, the results have been decidedly mixed. So what on earth would propel the idiot Dims to pursue this battle now, when the premise is not even plausible and the stakes so high?? Insanity? Insatiable lust for power?
Political rivals are immune from legitimate investigations??
Of course not.