Franklin Delano Roosevelt[a] (January 30, 1882 – April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. A member of the Democratic Party, he is the longest-serving U.S. president, as well as the only one to have served more than two terms. His first two terms were centered on combating the Great Depression, while his third and fourth saw him shift his focus to America's involvement in World War II.br br Born into the prominent Delano and Roosevelt families in Hyde Park, New York, Roosevelt graduated from Harvard University and Columbia University. He was elected to the New York State Senate from 1911 to 1913 before serving as the assistant secretary of the Navy under President Woodrow Wilson during World War I. Roosevelt was James M. Cox's running mate on the Democratic ticket in the 1920 presidential election, but Cox lost to Republican nominee Warren G. Harding. In 1921, Roosevelt contracted a paralytic illness that permanently paralyzed his legs. Partly through the encouragement of his wife, Eleanor Roosevelt, he returned to public office as governor of New York from 1929 to 1932, during which he promoted programs to combat the Great Depression. In the 1932 presidential election, Roosevelt defeated Herbert Hoover in a landslide victory.br br During his first 100 days as president, Roosevelt spearheaded unprecedented federal legislation and directed the federal government during most of the Great Depression, implementing the New Deal, building the New Deal coalition, and realigning American politics into the Fifth Party System. He created numerous programs to provide relief to the unemployed and farmers while seeking economic recovery with the National Recovery Administration and other programs. He also instituted major regulatory reforms related to finance, communications, and labor, and presided over the end of Prohibition. In 1936, Roosevelt won a landslide reelection. He was unable to expand the Supreme Court in 1937, the same year the conservative coalition was formed to block the implementation of further New Deal programs and reforms. Major surviving programs and legislation implemented under Roosevelt include the Securities and Exchange Commission, the National Labor Relations Act, the Federal Deposit Insurance Corporation, and Social Security. In 1940, he ran successfully for reelection, before the official implementation of term limits.br br Following the Japanese attack on Pearl Harbor on December 7, 1941, Roosevelt obtained a declaration of war on Japan. When in turn, Japan's Axis partners, Nazi Germany and Fascist Italy, declared war on the U.S. on December 11, 1941, he secured additional declarations of war from the United States Congress. He worked closely with other national leaders in leading the Allies against the Axis powers. Roosevelt supervised the mobilization of the American economy to support the war effort and implemented a Europe first strategy.