A bill that would legalize marijuana in Washington state – something every state legislator from Seattle, as well as the city’s mayor, city attorney and several City Councilmembers say they support – is officially dead in Olympia.

House Bill 1550 didn’t advance out of the relevant committees by Friday evening – a key cutoff date during the 2011 Legislature.

The measure, sponsored by Rep. Mary Lou Dickerson, D-Seattle would legalize marijuana, have its sale regulated by the state Liquor Control Board and impose a tax of 15 percent per gram on cannabis. Supporters say it would bring in hundreds of millions of dollars for a state government staring at a deficit of at least $5 billion for the next two years. A contingent of Seattle officials testified for the bill last month.

But actually passing a legalized pot bill was always going to be a hard sell. Technically, the measure could be incorporated into a budget bill in the final weeks of the session, but that seems highly unlikely.