Court battle ignites over Washington’s new income taxBy Jerry Cornfield (Washington State Standard)April 9, 2026 10:30 p.m.Foes of the tax on millionaire earners filed a lawsuit Thursday arguing the law is unconstitutional. Backers welcome the legal fight.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up