During an appearance at the Women's Conference, moderator Matt Lauer of the “Today” show asked gubernatorial candidates Jerry Brown and Meg Whitman to pull all negative advertising. Brown said he would if Whitman would. But the GOP candidate wouldn’t agree to the pledge, drawing boos from the audience. Brown, the Democrat in the race, went into the debate polling 6-13 points ahead, giving him more flexibility to make such a pledge. So was it a fair question? And how will this standoff change the tenor of the campaigns?