William “Mo” Cowan Becomes One of Two Black US Senators

Sen. William "Mo" Cowan

BOSTON — Massachusetts Gov. Deval Patrick has tapped his former chief-of-staff William “Mo” Cowan to serve as interim U.S. senator until a special election to fill the seat left vacant by Secretary of State-designate John Kerry. Patrick says Cowan’s role in helping turn around the Massachusetts economy in recent years “has earned him the respect […]