By 1918, half of all cars in the United States were Model Ts. All new cars were black; as Ford wrote in his autobiography, "Any customer can have a car painted any color that he wants so long as it is black." Until the development of the assembly line, which mandated black because of its quicker drying time, Model Ts were available in other colors, including red. The design was fervently promoted and defended by Ford, and production continued as late as 1927; the final total production was 15,007,034. This record stood for the next 45 years. This record was achieved in 19 years from the introduction of the first Model T (1908).
Henry Ford turned the presidency of Ford Motor Company over to his son Edsel Ford in December 1918. Henry retained final decision authority and sometimes reversed the decisions of his son. Ford started another company, Henry Ford and Son, and made a show of taking himself and his best employees to the new company; the goal was to scare the remaining holdout stockholders of the Ford Motor Company to sell their stakes to him before they lost most of their value. (He was determined to have full control over strategic decisions.) The ruse worked, and Ford and Edsel purchased all remaining stock from the other investors, thus giving the family sole ownership of the company.
In 1918, with the war on and the League of Nations a growing issue in global politics, President Woodrow Wilson, a Democrat, encouraged Ford to run for a Michigan seat in the U.S. Senate. Wilson believed that Ford could tip the scales in Congress in favor of Wilson's proposed League. "You are the only man in Michigan who can be elected and help bring about the peace you so desire," the president wrote Ford. Ford wrote back: "If they want to elect me let them do so, but I won't make a penny's investment." Ford did run, however, and came within 7,000 votes of winning, out of more than 400,000 cast statewide. He was defeated in a close election by the Republican candidate, Truman Newberry, a former United States Secretary of the Navy. Ford remained a staunch Wilsonian and supporter of the League. When Wilson made a major speaking tour in the summer of 1919 to promote the League, Ford helped fund the attendant publicity.
In 1918, Ford's closest aide and private secretary, Ernest G. Liebold, purchased an obscure weekly newspaper for Ford, The Dearborn Independent. The Independent ran for eight years, from 1920 until 1927, with Liebold as editor. Every Ford franchise nationwide had to carry the paper and distribute it to its customers.