Well, you may hate him, but he loves you for generating heat on social media for him.
He's probably wearing the coat for doing stand-ups on camera for ESPN. That's a common thing for tv news people, especially in sports. Formal up top, casual on the bottom, since the camera only shoots from the waist up. EDIT: Upon closer inspection, the back of his collar also looks like it has a wire coming up from the back of his jacket, probably part of an earpiece or microphone setup.