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Also, talk radio isn't a debate platform. It was his show and there was no need to debate anyone, as you said. So why griping that he didn't debate anyone? Paul Harvey didn't debate anyone. Howard Stern didn't debate anyone. They both had tightly controlled shows. In fact, Stern ran away to satellite radio so he could spew more filth. Yet both are considered tops in their fields. So again, why the whining that Rush didn't debate anyone?
Paul Harvey and Howard Stern never had debate shows or political commentary shows either. Lush Rimjob carefully screened any callers he ever took so that any dissent would be squashed, infamously telling a black caller who did get through, "take that bone out of your nose and call me back".
That's a coward. One who can't defend his bile.