The Clinton-Obama contest in California presents a different ‘two Americas’:

The poll also highlights the dramatic split the Clinton-Obama battle has caused in the state’s Democratic Party. Rich versus poor, young versus old, liberal versus conservative, men versus women: Each of those groups has lined up on different sides of the primary divide.

While people aged 18 to 29 back Obama by a margin of 11 percentage points, voters 65 and older support Clinton, 40 to 18 percent. Voters with household incomes of $40,000 or less back Clinton by an advantage of 11 percentage points, while those making $80,000 or more are strong Obama supporters.

Obama attracts voters who call themselves liberal, who have gone to graduate school and who are from the Bay Area, which backs him 41 to 31 percent. Clinton’s strength is among conservatives and moderates, those with a high school education and residents of sprawling Los Angeles County, where she holds a 42 to 34 percent lead.

There’s also a broad ethnic and gender gap between the campaigns. While white voters are split evenly between Clinton and Obama, the Illinois senator, whose late father was a black African, has a 55 to 19 percent lead among black voters, while Latinos back Clinton 52 to 19 percent.