i'm thuy vu. president obama's three-day swing through california this week taps campaign cash in silicon valley and hollywood'd. the goal, helping democrats hold on in november. in the south bay, long time congressman mike honda is facing stiff competition from a fellow democrat with high-tech ties. and two republicans are among the challengers vying to stop jerry brown from winning a fourth term as governor. scott shafer takes it from here. >> primary elections are often unpredictable. in particular, because so few people tend to vote. early voting with mail-in ballots already landing this week. joining me is carla marinucci, josh richman, and scott detrow joip joining us from the capitol. well, folks, the president was in town this week. the last thing he did was an event at a walmart in mountain view. he was touting green energy. really didn't go down well with some of the liberal groups. >> well, yeah, he use the the walmart in mountain view to rollout a new energy initiative he's going to be