It Can't Happen Here, and the long decline, 1931–1951
The books after the Nobel were weaker, and Lewis knew it. He had reportedly told friends on winning that it was the end of him and that he could not live up to it. He kept working: Ann Vickers (1933), Work of Art (1934), and then in October 1935 It Can't Happen Here, in which a folksy senator named Berzelius Windrip wins the presidency and turns the United States into a dictatorship. It sold more than 320,000 copies, and the Federal Theatre Project opened stage versions in eighteen cities on the same night in October 1936.
One line everybody attributes to that novel is not in it. The sentence about fascism arriving wrapped in the flag and carrying a cross appears nowhere in It Can't Happen Here or in anything else Lewis wrote, as both Snopes and PolitiFact have documented. It has circulated under his name since the mid-2000s.
He left Dorothy Thompson in 1937 and was treated for alcoholism at a Massachusetts sanitarium, staying largely sober for several years. Thompson was granted a divorce in January 1942. From 1939 he kept company with Marcella Powers, an actress thirty-six years younger. His son Wells Lewis was a lieutenant serving as aide to a general in the 36th Infantry Division. He was killed by a German sniper in eastern France on 29 October 1944, during the rescue of the Lost Battalion, and is buried at Épinal. The news reached the papers before it reached his father.
Lewis wrote Kingsblood Royal (1947), a novel about race in America, while living in Duluth. After 1945 he spent most of his time in Europe, and in 1950 settled in Florence, drinking again. On the last day of that year he was taken to the Clinica Electra on Monte Mario outside Rome, where doctors first diagnosed acute delirium tremens. He suffered a heart attack on 9 January 1951 and died at dawn the next morning, aged 65. His body was cremated and his ashes buried at Sauk Centre on 19 January.
Sauk Centre, which had been furious in 1920, now calls itself the Original Main Street. His boyhood home on Sinclair Lewis Avenue is a National Historic Landmark and a museum. It Can't Happen Here sold out at American retailers and returned to the bestseller lists after the presidential election of November 2016, and Penguin issued a new edition on inauguration day in January 2017.