As the Supreme Court prepares a decision on the fate of Proposition 8, nearly six in 10 California voters now believe same-sex marriage should be legal, with support rising among older voters and in all regions of the state, a new poll has found. The USC Dornsife/Los Angeles Times poll reveals that attitudes in the state toward gay marriage have changed significantly since Californians banned it in 2008 by a vote of 52% to 48%. The Supreme Court will decide this month whether the ban will continue. "There has been movement across the board" in favor of same-sex marriage, said Dave Kanevsky, research director of the American Viewpoint, a Republican polling firm that helped conduct the survey. "Every group has moved."