POSTED: 10:34 pm PDT May 21, 2007 FAIRFIELD -- What initially appeared to be a minor traffic accident involving California State Senator Carole Migden is now part of a broader investigation by the highway patrol. The KTVU Ten O'Clock News has learned that several motorists phoned the CHP, warning them to stop an erratic and dangerous driver just before Migden crashed her car last Friday. A peninsula man, who asked us not to use his name, is one of half a dozen drivers so worried about a woman driving erratically and recklessly Friday morning on Interstate 80, they called 911....