Donald Trump and Kamala Harris had their first presidential debate on ABC News Tuesday night. The Republican nominee is not leaning toward doing a second one.
ABC is a network that doesn't have an FCC license. Each individual local station is an FCC licensee. They're the ones that are responsible for the content they air.
Trump has repeatedly shown he can and will ignore all the rules restricting him. Furthermore he'd have immunity for official acts. So firing everyone until someone agrees to just pull the licenses of any station named ABC is right up his alley and possible now.
Hell he can claim ABC is a terrorist organization and then sic the federal government on them. Since he identified them as terrorists dealing with them would be considered an "official act" covered by the immunity ruling...