United States v. McElveen, D.C.1959, 177 F.Supp. 355; D.C., 180 F.Supp. 10, affirmed sub. nom. United States v. Thomas, 1960, 362 U.S. 58, 80 S.Ct. 612, 4 L.Ed.2d 535; Rice v. Elmore, 4 Cir., 1947, 165 F.2d 387, 391, certiorari denied 333 U.S. 875, 68 S.Ct. 905, 92 L.Ed. 1151; Chapman v. King, 5 Cir., 1946, 154 F.2d 460, certiorari denied
327 U.S. 800, 66 S.Ct. 905, 90 L.Ed. 1025; Baskin v. Brown, 4 Cir., 1949, 174 F.2d 391. We think the cases warrant the following summary. When private individuals or groups are endowed by the State with powers or functions governmental in nature they become instruments of the State and subject to the same constitutional limitations as the State itself. Thus, a private party operating a municipality acts for the State and must conform to the standards of the Fourteenth Amendment (Marsh v. State of Alabama, 1946, 326 U.S. 501, 66 S.Ct. 276, 90 L.Ed. 265); a privately-owned public transportation system operating in the District of Columbia, and with its authorization, is bound by the due process clause of the Fifth Amendment (Pollak v. Public Utilities Commission, 1951, 89 U.S.App.D.C. 94, 191 F.2d 450, reversed on other grounds 343 U.S. 451, 72 S.Ct. 813, 96 L.Ed. 1068); private lessees who operate publicly-owned facilities such as swimming pools or parks may not discriminate racially (Lawrence v. Hancock, D.C.S.D. W.Va.1948, 76 F.Supp. 1004; Department of Conservation & Development, etc. v. Tate, 4 Cir., 1956, 231 F.2d 615, certiorari denied 352 U.S. 838, 77 S.Ct. 58, 1 L.Ed.2d 56); and a labor union granted the power to bargain collectively by a federal statute may not use the power to discriminate racially (Brotherhood of Railroad Trainmen v. Howard, 1952, 343 U.S. 768, 72 S.Ct. 1022, 96 L.Ed. 1283; Syres v. Oil Workers International Union, 350 U.S. 892, 76 S.Ct. 152, 100 L.Ed. 785; cf. Steele v. Louisville & Nashville R. Co., 1944, 323 U.S. 192, 65 S.Ct. 226, 89 L.Ed. 173).