Democratic presidential candidate Hillary Rodham Clinton is expanding her lead in California as excitement for Illinois Sen. Barack Obama is fading among Golden State voters, a new Field Poll revealed Thursday.

The New York senator held a commanding lead over the Democratic field, with 49 percent support to 19 percent for Obama and 10 percent for former North Carolina Sen. John Edwards.

The survey of 418 Californians likely to vote in the Feb. 5 Democratic presidential primary showed Clinton leading -- and gaining support -- in every demographic category and California region measured.

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