Calvin Coolidge (born John Calvin Coolidge Jr.; /ˈkuːlɪdʒ/; July 4, 1872 – January 5, 1933) was an American politician and lawyer who served as the 30th president of the United States from 1923 to 1929. He signed into law a budget that kept the tax rates the same, while trimming $4 million from expenditures, thus allowing the state to retire some of its debt. Coolidge adopted the taxation policies of his Secretary of the Treasury, Andrew Mellon, who advocated 'scientific taxation' — the notion that lowering taxes will increase, rather than decrease, government receipts. Congress agreed, and tax rates were reduced in Coolidge's term. In addition to federal tax cuts, Coolidge proposed reductions in federal expenditures and retiring of the federal debt. Coolidge's ideas were shared by the Republicans in Congress, and in 1924, Congress passed the Revenue Act of 1924, which reduced income tax rates and eliminated all income taxation for some two million people.