As the LA Times puts it, "Once again, California seems to be bucking a national tide." Arguably, CA swung as much left as anything in this election. According to exit polls:
Conservatives made up 33% of the California electorate this time around, according to preliminary results from this year’s California exit poll. Four years ago, the figure was 30%. Liberals made up 27% this time, compared with 25% four years ago. The percentage of self-identified moderates dropped to 40% this time, compared with 44% in 2006, the exit poll showed.