Pulitzer Prize-winning biographer who received the National Book Award in History and Biography for his book Roosevelt: The Soldier of Freedom. He gained additional recognition for his writings on leadership theory.
He ran as the Deomocratic nominee for the First Congressional District of Massachussetts in 1958.
He advocated to repeal the 22nd Amendment of the U.S. Constitution, which hampers presidents from serving more than two terms in office.
He was raised in Burlington, Massachusetts.
He became the Woodrow Wilson Professor of Government Emeritus at Williams College.