Normally I regard Chris Mathews as a destructive force in the US political conversation, but here he uses his powers for good instead of evil. Watch him, sniffing out the telltale scent of historical ignorance, mete out a cruel, relentless, and utterly deserved humiliation.
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(If you prefer, here's the unedited version of the same segment, with the comments by the second guest, Mark Green, left in:)
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