Biography · Politics & Public Life
Mo Cowan
1969–
United States
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William Maurice "Mo" Cowan (born April 4, 1969) is an American politician who served as a United States senator from Massachusetts from February to July 2013. A member of the Democratic Party, he previously served as legal counsel and chief of staff to Governor Deval Patrick. Patrick appointed him on an interim basis to fill the vacancy left by fellow Democrat John Kerry, who resigned to become U.S. Secretary of State.
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Biography text · CC BY-SA 4.0 · Source checked 2026-10-13
