After the 1920 election, newly elected Republican President Warren G. Harding appointed Hoover as Secretary of Commerce; Hoover continued to serve under President Calvin Coolidge after Harding died in 1923. Hoover was an unusually active and visible cabinet member, becoming known as 'Secretary of Commerce and Under-Secretary of all other departments'. He was influential in the development of radio and air travel and led the federal response to the Great Mississippi Flood of 1927. In the days following Black Tuesday, Hoover gathered business and labor leaders, asking them to avoid wage cuts and work stoppages while the country faced what he believed would be a short recession similar to the Depression of 1920–21. Hoover also convinced railroads and public utilities to increase spending on construction and maintenance, and the Federal Reserve announced that it would cut interest rates. In early 1930, Hoover acquired from Congress an additional $100 million to continue the Federal Farm Board lending and purchasing policies. These actions were collectively designed to prevent a cycle of deflation and provide a fiscal stimulus.