Voters in Washington, D.C. on Tuesday voted overwhelmingly to pass a ballot measure to raise the minimum wage to $15 an hour and include tipped workers. D.C. now joins eight states that have established a single minimum wage, and its passage makes the city a bellwether for states currently considering tipped wage increases of their own — including New York, Michigan, and Massachusetts.
Initiative 77 passed 55 to 44 percent, despite a well-funded campaign from the restaurant in...