Fox News hosts and personalities have been instructed over the last several days not to identify the whistleblower whose complaint sparked an impeachment probe against President Trump, people familiar with the matter told CNN Business.

Several hosts and commentators on the network who have been supportive of President Trump seem to want to name the person they believe to be the whistleblower, but Fox’s guidelines have said not to do so…

But, on October 31, a Fox executive sent an email to staffers that said the network had not “independently confirmed [the] name or identification of the anonymous whistleblower.” A copy of the email was obtained by CNN Business.

The executive further advised production staffers to “NOT fulfill any video or graphic requests” related to the whistleblower’s identity.