That word was not an accident. Because he used it more than once to hammer it in:
“I frankly just think it’s hysterical how much the media is overreacting to it,” Vance said while traveling to a campaign rally in Arizona.
…
“So what he said, I thought it was hysterical. I think he pointed out the fundamental chameleon-like nature of Kamala Harris,” Vance said. “She’s flip flopped on every issue. She’s fake. She’s phony. And I think our whole campaign is going to have a very fun time pointing that out. And it sounds like the president kicked us off in stride.”
For those unaware: https://en.wikipedia.org/wiki/Hysteria
The Appalachian hillbilly from suburban Ohio knows what that word means. He went to Yale.
J.D. thinks it’s “hysterical” because J.D. became an Appalachian hillbilly when he thought it would benefit him politically. So if he can become a hillbilly, of course Kamala can become black!