@oralloy,
Both Comey and his successor (and longtime confidant), McCabe, have assured congress that Comey's firing in NO WAY impeded or ended the collusion investigation. Comey was not, and never was, the person doing the investigating to begin with.
Yet congress, presumably Mueller, and every cheese-eater here wants to pretend that removing him "interfered" with it.
As many, including you and a prominent left-wing law professor, have pointed out, there would be no crime EVEN IF Trump had directly ordered Comey to drop the investigation (which he didn't). If the special prosecutor is indeed investigating this as a "crime," then it's obviously a partisan witch hunt.