On June 15, 1977, just a year and a half after the death of Generalissimo Francisco Franco, Spaniards elected a new, bicameral Cortes with the authority to write a constitution for Spain. It was the first freely contested parliamentary election in Spain since February 15, 1936, and it produced scenes that Franco would have abhorred: Communists brazenly waving red banners, chanting slogans, and singing the Internationale; the young, dynamic leader of the Socialist Workers Party entering rallies with his left hand in a clenched fist salute, his right signaling V for victoria; politicians exhorting Basques in Euskera, Catalans in Catalan, Galicians in Gallego, all forbidden languages a few years before; and newspapers belittling their government and its leader...