Late on a Sunday afternoon I am locked into the gated parking lot of a sketchy jumble of apartments somewhere in Hayward in Northern California . For several hours, I've been following a small band of canvassers for Obama. It's "Walk For Barack" California Canvassing to Latino Communities Weekend. On Friday, Debbie Mesloh, Obama's California Communications Director, has shot me an email about the event. "Media is welcome to come 'spend the...