In the Gomillion v. Lightfoot case of 1960, the U.S Supreme Court ruled that electoral district boundaries drawn only to disenfranchise blacks violated the Fifteenth Amendment. The city of Tuskegee, Alabama had redrafted its city limits into a 28-sided figure designed to exclude nearly all black residents while not excluding a single white resident. Charles Gomillion and other African American citizens sued Mayor Phillip Lightfoot claiming this act was racially discriminatory and infringed on their right to vote. The court unanimously held that such racial gerrymandering constituted an unconstitutional effort to limit black voting power under the guise of geographic reclassification, thus violating equal protection laws as well as political and civil rights of African Americans protected by the Constitution.

In the Gomillion v. Lightfoot case, there was no dissenting opinion recorded. The Supreme Court unanimously ruled that Alabama's redrawing of Tuskegee city boundaries to exclude black voters violated the 15th Amendment, which prohibits states from denying or abridging citizens' right to vote on account of race or color. Therefore, all justices concurred with this decision and none expressed a differing viewpoint in an official capacity.