Just whine about it. If he's a "dirty cop"—and Comey is worse than that—then not doing anything about it is evidence that the FBI is not a federal bureau of investigation when the criminality is within their own organization.
Such a corruption-and-criminality-tolerant bureau of criminals and whiners needs to be disbanded and replaced.
Comey is more dangerous because he is supposed to be a republican. Same as Fox News, Chris Wallace, John McCain, Linda Graham etc. The enemy within is always far more dangerous than any external foe.