Reagan Son Claims Dad Had Alzheimer's as President 2011 is a big year for Ronald Reagan fans, being the centennial of his February 6 birth in Tampico, Ill. But youngest son Ron Reagan is spoiling the good cheer with a new book that suggests the Gipper suffered from Alzheimer's disease while in the White House, a claim dismissed by Reagan's doctors and outside experts. "Had the diagnosis been made in, say, 1987, would he have stepped down?" Ron asks, regarding the disease confirmed in 1994. "I believe he would have," he writes in My Father At 100: A Memoir, due...