Wow, if you have not seen it, you must watch Rachel hold her own in a civil, but unyielding, discussion with David Frum, Frum on Maddow. My guess it that Frum believed he could throw out the random, 'yeah we are bad, but so are you' and then move on to his other talking points. Rachel, bless her heart, did not let it pass unchallenged!

The real irony, Mr. Frum did not seem to grasp that, in order to engage in sarcasm & wit, you must needs actually have a grasp of the substantive issues.