My thanks to the staff of the Minnesota Historical Society in St. Paul, the Dwight D. Eisenhower Library in Abilene, Kansas, and the Library of Congress for facilitating my access to the papers of Harold E. Stassen, John Foster Dulles, and Robert A. Taft. As so often in my past efforts, Steve Rearden has been an indispensable commentator on my work. For this volume, Phil Cantelon’s close reading and wise advice made an invaluable contribution. Not least among the those who supported this project is Allison Webster, executive assistant to the director of the press, who has been a constant source of encouragement over the last several years.