"If you're buying those f—ing hats... then you're part of the problem," the singer and bass player yelled into the mic at the Allentown Fairgrounds on Thursday, Sept. 1.
"You’re being duped by a bunch of grifters and billionaires who don’t give a sh*t about you or your family. They care about their f—ing tax breaks and the money they can put in their pocket."
The crowd cheered.
"If you consider yourself a patriot and you’re spouting off that election-denying sh*t, I will fight your a** outside if you want to. Wake the f— up."
Casey's tirade happened the same night as President Joe Biden's speech warning the nation against an assault on American democracy.
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