December 4, 2014 3:55 pm Obama Family Lights National Christmas Tree News4’s Doug Kammerer reports live from the national tree lighting. US & World Videos 5:44 May Day demonstrations, Gaza war protests continue across Bay Area 3:27 May Day demonstrations planned, Gaza war protests continue across Bay Area 2:27 Junk fee law bans restaurant surcharges 1:45 NYPD enters Columbia University in riot gear to clear protest 2:27 ‘California Forever' plan moves forward