The station it's wiping out is WHAS in Louisville, KY. WHAS signal is strong enough here in the evening that racket is just a minor annoyance. It's been under WHAS for a good decade, on and off.
Nearby WLW in Cincy has it too, but it's much worse on their freq, where I'm at. I've often wondered given both stations locations close to Wright-Patterson AFB, if that's not where it originates at?
Personally, I think it's Gary Burbank in retirement in Florida getting revenge for all the times those two stations fired and rehired him. I wonder if his "Earl Pitts, Uhmerican!" bits are still being syndicated? IMO, Gary was the best drive time host I ever heard. He and his crew were anarchy in the booth.