What will the people of Washington State do if the Washington State Legislature legalizes same sex marriage this session, and then that decision is put up to a popular vote in November 2012?

Matt Barreto of the Washington Poll just took a deeper look at data he gathered a few months ago—when he found 55 percent of Washington voters would uphold same sex marriage rights—and discovered further evidence that the people of Washington State are unlikely to overturn a legislative decision to extend marriage rights to gays and lesbians.

Among the new findings released today: 54% of Independents support same sex marriage; 57% who describe themselves as Moderates support same sex marriage. Among voters age 18-40, 65% support same sex marriage, while among voters age 66 or older, 48% support same sex marriage.