"To imply that they might use something such as the independent regulatory process of the FCC to exact revenge against media organizations that they find to be enemies or not supportive of their cause is just astounding," Hyman told Fox News Channel's "Special Report with Brit Hume."
Earlier in the day, campaign spokesman Chad Clanton had warned, "Listen - they better look out there at Sinclair Broadcasting. ... They've stirred up a lot of hatred. ... I think they're going to regret doing this.
They better hope we don't win."
Hyman said Clanton's words "certainly sounded like a threat" and that was cause for widespread concern.
"It's something that should cause concern for every media organization in the country - if this is going to be a precedent for this campaign or any other campaign should they win," the Sinclair spokesman told Fox.