Here's an excerpt from the video of the press conference where Governor Gregoire announced her endorsement of marriage equality:
The Governor and Equal Rights Washington say they do not yet have the votes in the State Senate to pass the legislation but they expect to get them in the heavily Democratic body. After the Governor signs the legislation the heterosexual supremacists will almost definitely file a referendum to have a vote on the measure in 2012. Happily, Washington State advocates for LGBT equality are ready and experienced, having successfully defended the state's comprehensive domestic partnership law in a referendum in November 2009.
Congratulations to Washington!
Hat/tip to LGBT Think Progress