California is trending bluer over time, and has not voted GOP for president since 1988. But Barack Obama dominated there far more than John Kerry, Al Gore, and even Bill Clinton did. His 24-point win over John McCain was a bigger margin of victory than any candidate of either party has gotten since FDR routed Alf Landon in 1936--besting even California residents Richard Nixon and Ronald Reagan in their 1972 and 1984 landslides.
And for Obama, there's no looking back. In our latest poll, he beats all the Republicans by at least 21 points, and his approval rating has not faltered since we last surveyed the state in late January. Then, 53% approved, the same as now. His disapproval rating has only ticked up to 43% from 41%. This is the rare state where voters haven't soured on him over the course of this year--even in his native Hawaii, his approval margin took a 15-point nosedive between March and October. Ahead of California, only three states of the 37 in which we've polled Obama this year see him better--the aforementioned Hawaii and the reliably blue New England states of Rhode Island and Vermont.
The president leads Mitt Romney by 21 points (57-36), almost unchanged from 56-36 in the previous survey. Obama tops new frontrunner Newt Gingrich by 26 points (60-34), up two from 58-34. The others were not tested last time. Ron Paul trails by 25 points (57-32), and Herman Cain, Rick Perry, and Michele Bachmann each by 29 (61-32, and 60-31 for the latter two).
http://www.publicpolicypolling.com/main/2011/11/obama-has-cali-on-lock.html