No matter what Mitt Romney wanted this week to be about, it's clear that it's going to be about one thing: A campaign that is off message and in disarray. The series of stories Monday morning that laid bare latent tensions within the Romney campaign, and in particular, displeasure with the one of the GOP candidate's trusted advisers, Stuart Stevens, turnout out to be just the beginning. But it was the late-day hidden camera dump by Mother Jones' David Corn and video researcher James Carter that turned out to be the day's real atomic bomb. The leaked videos showed a...