State poll shows huge gains by Obama, McCain John Wildermuth,Carla Marinucci, Chronicle Political Writers Sunday, February 3, 2008 A startling surge of support for Barack Obama has catapulted the Illinois senator into a virtual tie with Hillary Rodham Clinton in California's Democratic presidential primary, a Field Poll released Saturday shows. Arizona Sen. John McCain lengthened his lead in the state Republican primary, grabbing a 32 to 24 percent edge among likely voters over former Massachusetts Gov. Mitt Romney. Former Arkansas Gov. Mike Huckabee was at 13 percent and Texas Rep. Ron Paul at 10 percent. But the Democratic numbers are...