1. WATCH OUT

    Newt Goes After Mitt in New Ad

    Mike Segar / Reuters

    Newt did a 180 last week and ditched his positivity plan for a negativity-based campaign. Now he has moved on to a new phase, which he is calling "contrast." A combination of Gingrich's dark and lighter sides, the candidate's latest ad begins by explaining what's wrong with opponent Mitt Romney's economic plan: namely, it's "timid." Then the ad contrasts (get it?) this negativity with what the former speaker will do to improve the economy and create jobs, displaying happy images over the backdrop of upbeat music. Gingrich has eased off the negativity since being singled out for his attacks—mostly directed at Mitt Romney.

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