PORTLAND, Maine — William D. Hathaway, a World War II prisoner of war who upset Margaret Chase Smith in a US Senate race but then lost his seat after one term to William Cohen, has died. He was 89.
Mr. Hathaway died Monday at his home in McLean, Va.
A liberal Democrat who had strong backing from organized labor, Mr. Hathaway served four terms in the House from northern Maine’s Second District, geographically the largest east of the Mississippi, before running for the Senate in 1972.
After narrowly defeating Smith, Mr. Hathaway was unseated in 1978 by Cohen.
He was a native of Cambridge, graduating from Harvard and Harvard Law School.
After leaving the Senate, Mr. Hathaway practiced law.