POLITICO Every Boston mayor has been a white man. Will 2021 change that? The departure of Marty Walsh for the Biden administration creates a rare open-seat opportunity in the city — and sets up an election that will be dominated by a debate about issues surrounding race. A campaign launch event is held outside the childhood home of mayoral candidate Andrea Campbell (left) in Boston. | Courtesy Alex Joachim, Instagram: byalexjoachim Updated: Link Copied BOSTON — More than 250 years after a Black man became the first casualty of the American Revolution, felled by British troops during the Boston Massacre, this city of 700,000 still hasn’t elected a mayor who isn’t a white man.