Dan Koh, Massachusetts

Dan Koh earned a bachelor's degree from Harvard University and an MBA from Harvard Business School. He served as chief of staff to Boston Mayor Marty Walsh before joining the Biden White House as deputy director of the Office of Intergovernmental Affairs, where he helped implement federal infrastructure and clean energy programs. He later served as chief of staff to U.S. Labor Secretary Walsh and was elected to the Andover Select Board. He won a six-way Democratic primary in September 2026 for the open seat vacated by Seth Moulton and would be the first Asian American elected to Congress from Massachusetts. His priorities include lowering costs for working families, defending democracy, and expanding clean energy investment.