The presidency of Herbert Hoover began on March 4, 1929, when Herbert Hoover was inaugurated as President of the United States, and ended on March 4, 1933. Seeking to address an ongoing farm crisis, Hoover signed the Agricultural Marketing Act of 1929. In foreign affairs, Hoover favored non-interventionism in Latin America and pursued disarmament policies with the London Naval Treaty. After President Calvin Coolidge announced in August 1927 that he would not seek a second full term of office in the 1928 presidential election, Hoover emerged as the front-runner for the Republican presidential nomination. Hoover declined to use a spokesman, instead asking reporters to directly quote him and giving them handouts with his statements ahead of time. In his first 120 days in office, he held more regular and frequent press conferences than any other president, before or since.