Place your non-monetary, totally legal bets:

Sen. Jim Kastama of Puyallup has scheduled a press conference for Thursday to declare his position. Supporters of the bill are just two votes shy in the Senate, and Kastama is 1 of a half-dozen lawmakers who remain uncommitted.

Here's the tricky part:

Kastama is a conservative Democrat who voted in 1998 to define marriage as between one man and one woman. He supported a 2009 expansion of the state's domestic partnership laws.