§ 1331.
The district courts shall have original jurisdiction of all civil actions arising under the Constitution, laws, or treaties of the United States.
([June 25, 1948, ch. 646], [62 Stat. 930]; [Pub. L. 85–554, § 1], July 25, 1958, [72 Stat. 415]; [Pub. L. 94–574, § 2], Oct. 21, 1976, [90 Stat. 2721]; [Pub. L. 96–486, § 2(a)], Dec. 1, 1980, [94 Stat. 2369].)