Republican candidate for President of the United States in the election of 1940. Wilkie was a Democrat, a corporate lawyer and executive, and a vociferous critic of some of Franklin Roosevelt's New Deal programs. As support for his positions grew across the country, he saw an opportunity to ride anti-New Deal sentiment into the White House. He switched allegiance to the Republican Party and narrowly won its nomination in what was dubbed "The Miracle at Philadelphia", but lost badly to Roosevelt in the subsequent election. In 1942 when Roosevelt finally committed the United States to action in World War II, with debate about it raging in the U.S., he sent Wilkie on a 50-day journey to allies around the world to assure them of America's commitment to freedom and the defeat of fascism. Wilkie made stirring speeches in support of those objectives, and wrote an internationally-bestselling book, One World, in 1943 about the experiences of his journey and the dangers of American isolationism. However his international success and heightened stature failed to win him the Republican nomination in 1944. He died suddenly of a heart attack later that year.