Maybe that wasn’t an insult...It could possibly be just the truth...
Like calling water “wet.”
It’s not a “persoanl insult” if it’s the truth.
Or did he call him garbage.? Either one is fine.
Actually, the governor of Connecticut called Mike Pence incredibly stupid and a bigot first. So at most, he was spoken to in terms he freely uses against the Trump campaign.
Perhaps if he'd called him "intellectually challenged" or "less-than-abled" it would have been better.