Can someone explain the heat between Jim Cornette and Don Muraco?

I'm listening to Cornette talk about Jericho going insane in AEW, and he keeps repeatedly ranting about "Donnie Dipshit" which I assume is his nickname for Don Muraco. Specifically he talks about some sort of parade or rally that Muraco held in DC that Jericho's wife was at; almost like he considers anyone who doesn't despise Muraco to be subhuman.

help me out here /pw/