No one has been more baffled by Ronald Reagan than the scholars who have devoted their lives to making sense of his. The book still hailed as the most definitive biography , Lou Cannon’s 1991 President Reagan , is more a journalist’s account of Reagan’s presidency than a full-scale life of the man. Reagan’s authorized biographer, Edmund Morris, found himself so flummoxed by his subject that he wound up placing himself in the narrative as a character in his 1999 Dutch (Reagan’s childhood