Louis Dembitz Brandeis was an American lawyer who served as an associate justice of the U.S. Supreme Court from 1916 to 1939. Brandeis was a leading figure in the antitrust movement at the turn of the 20th century, particularly in his resistance to the monopolization of the New England railroad. His anti-monopolistic jurisprudence laid the intellectual foundation for the New Brandeis movement, a contemporary revival of antitrust thought spearheaded by figures such as Lina Khan and Tim Wu.