The non-partisan Washington Poll's annual survey has asked a question to voters regarding their opinion on same sex marriage each year since 2006, and found a 7 point increase in support of same sex domestic partnership. In 2006, approximately 59% of registered voters supported either same sex marriage (30%) or domestic partnership with the full rights of marriage (29%), compared to 41% who supported less partnership rights. In 2008, 66% of registered voters supported marriage or domestic partnership.
If their finding holds, it should spell defeat for those trying to overturn the state's new domestic partnership benefits via R-71. That is, as long as everyone remembers which way is which when they get into the voting booths in November.