How much of the racial voting differences are simply due to age and income?

[politicallefty]

If you round California right now, it's 60-38 (barely down from 61-37 in 2008). Obama may not cross 60%, but he's very close and I don't know what's still outstanding. The polls definitely understated Obama this time, unlike four years ago. To be honest, the Field Poll is the main reason I predicted Obama under 60% in California, although I was accurate in predicting Romney under 40%. I think California is one major state where age and demographics are seriously conspiring against the Republican Party. Part of me is almost amazed at how the Republican Party in California has so totally collapsed in the state, to the point of almost being practically dead at the moment.

(The CA SoS has the current margin at 59.7-37.9.)