Excerpts from Books and Wikipedia
"On October 26, 1942, Willkie made a "Report to the People", telling Americans about his trip in a radio speech heard by about 36 million people. The following April, he published One World, a book Van Doren edited, in which he recounted his travels and urged America to join a supernational global organization after the war was successfully concluded. The book was an immediate bestseller, selling a million copies in its first month. It was especially influential because Willkie was seen by many as having transcended partisan politics." [Wikipedia]