At some point, the senator would be well-advised to address this issue once and for all, clearly, and for everyone to hear.
But without more, there's really no reason respond to the assertions of man whose veracity has been eviscerated by men like Christopher Hitchens and David Horowitz, among others. Especially when, as Michael Wade at Daily Acts documents, McCain denied any intention of departing the GOP in 2001 and 2002.
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