Abrams v. United States, 250 U.S. 616 (1919), was a decision by the Supreme Court of the United States upholding the 1918 Amendment to the Espionage Act of 1917, which made it a criminal offense to urge curtailment of production of the materials necessary to the war against Germany with intent to hinder the progress of the war. The 1918 Amendment is commonly referred to as if it were a separate Act, the Sedition Act of 1918.