Fox News has to fire Hannity. You can't have a host who interviews his own lawyer on TV without disclosing it, and who interviews a politician he's regularly advising on policy without disclosing it, and not become state television rather than a "news outlet" measured by Nielsen. 
2/ UPDATE: Cohen has represented to a federal court that Hannity is his client, and Hannity has admitted he called Cohen on a semi-regular basis for legal advice.
But Hannity also implies Cohen lied to a federal court—as Hannity claims Cohen is not his attorney. #damagecontrol
But Hannity also implies Cohen lied to a federal court—as Hannity claims Cohen is not his attorney. #damagecontrol
3/ ANOTHER UPDATE: I should be clear that Hannity's argument will hold no water whatsoever with the federal courts or the New York Bar. Cohen was his attorney. Look at this quote from Hannity's radio program. Hannity's up to his eyeballs in gunk this time.
