" The modern Presidents Club was founded by two men who by all rights should have loathed each other. There was Harry Truman, the humble haberdasher from Missouri, hurled into office in the spring of 1945, summoning to the White House Herbert Hoover, a failed Republican president who had left town thirteen years earlier as the most hated man in America, his motorcades pelted with rotten fruit. They were political enemies and temperamental opposites. Where Truman was authentic, amiable, if prone to eruptions of temper, Hoover could be cold, humorless, incapable of small talk but ferociously sure of the rightness of his cause. "

― Nancy Gibbs , The Presidents Club: Inside the World's Most Exclusive Fraternity