a) Giuliani is extraofficial
b) Quid pro quo is illegal
c) Burisma is synonymous with Biden
d) Anticorruption investigation into Burisma is election interference
e) Trump making foreign policy is illegal
These are all false narratives.
a) President can use anyone as an emissary, and when he does, it is official. Of course what the emissary does is subject to legitimate inquiry, but the fact that the emissary isn't on DoJ's payroll is completely beside the point.
It is of course possible the President is guilty of something sinister that will be substantiated during the public hearings starting next week.
The End