John Deaton

John Deaton was born in 1967 in Highland Park, Michigan. He graduated from Eastern Michigan University and, in 1995, from the New England School of Law in Boston. He enlisted in the Marine Corps while in law school, was commissioned a second lieutenant in 1994, served as a judge advocate at Marine Corps Air Station Yuma, Arizona, as senior defense counsel and then chief prosecutor, and was medically retired as a captain in 2002 after a non-combat injury. He founded his own law practice in 2006 and teaches at Roger Williams University School of Law. He moved to Massachusetts from Rhode Island in 2024 and lives in Bolton. In 2024 he won the Republican primary for U.S. Senate and lost the general election to Sen. Elizabeth Warren with about 40 percent of the vote. For 2026, delegates nominated him by acclamation at the April 25, 2026 state convention, and he was unopposed in the Republican primary. He faces Democratic Sen. Ed Markey on November 3.