In 2010, public financing for supreme court races appeared to be on its way to reality when it ran aground a procedural hurdle. The 2010 version would pay for the financing via a $3 fee on civil case filings, something that Lt. Gov. Brad Owen, as President of the Senate, ruled was a tax. Tax increases in Washington require a two-thirds majority of the legislature (fees require a simple majority, h/t Spokesman Review)
Despite not being able to achieve the two-thirds vote in 2010, the bill is back (SB 5010) and being sponsored by Senator-elect Scott White who, while a member of the 2010 House, sponsored the same public financing bill in that chamber.