This measure would require two-thirds legislative approval or voter approval for tax increases, legislative approval of fee increases, certain published information on tax-increasing bills, and advisory votes on taxes enacted without voter approval.
Source for Popular Vote data: Washington Secretary of State. November 6, 2007 General, Washington Secretary of State (http://www.vote.wa.gov/Elections/WEI/Results.aspx?ElectionID=2&RaceID=0&RaceTypeCode=M) (accessed 19 Sep 2008)