Yes Christie’s presser was a “tour de force performance” but based on implausible deniability? Lowry & Shrum agree that his brand as a can-do bipartisan guv is shifting to a partisan bully. But they clash over NYC’s 109th Mayor – hard-working idealist or liberal boss? — and whether the Bob Gates book helps/hurts Obama, Clinton, Biden. Conclusion: O 44 & Clinton 45 ok but the button-downed Defense professional apparently didn’t warm up to the garrulous VP.