If he does show up for a debate, they need to see if he is wearing an earbud being fed answers. (Or jam it with static.)
Conspiracy theorist? Yes, I am.
“Or jam it with static”
Or better yet, electronically hijack it and feed him some over-the-top crazy lines (”I’m wearing Jill’s underwear right now,” “Hunter shared his Bolivian marching powder with me before I came outh here” etc).