account either he or someone with access to his Twitter account fired off a reply to someone else's tweet.
https://twitter.com/HowardKurtz/status/957693412630781952
He(?) claimed he doesn't watch Fox much but defended Howard Kurtz:
"He’s 100% fair & balanced, he’s levelheaded & gives criticism when it’s due, no matter the party"
My guess is that he or one of his staffers defended Kurtz but screwed up and did so from Kurtz' own verified Twitter account. Whoever did it probably has another Twitter account and thought they were doing so from the other account.
It's a little silly saying that you are not a regular Fox viewer when you are one of the personalities on there, and then defending yourself while apparently pretending that you are an objective 3rd party.