This article traces the legislative and judicial history of the Voting Rights Act of 1965, from its constitutional antecedents through its passage, implementation, and subsequent amendment and litigation. For background on the constitutional foundation, see Fifteenth Amendment - History. For the main topic page, see Voting Rights Act. For scholarly consensus on key interpretive questions, see voting-rights-act-consensus.
The Fifteenth Amendment, ratified in 1870, prohibited denial of the right to vote on account of race, color, or previous condition of servitude. In the years following Reconstruction, however, Southern states enacted a range of measures that effectively disenfranchised black voters. Poll taxes, literacy tests, grandfather clauses, white primaries, and violence against would-be registrants became widespread. The Supreme Court upheld the white primary in Grovey v. Townsend (1935) before reversing itself in Smith v. Allwright (1944), ruling that the Democratic Party's all-white primary in Texas constituted state action prohibited by the Fifteenth Amendment.
Efforts by the federal government to address systematic disenfranchisement prior to 1965 proved limited. The Civil Rights Act of 1957 created the Civil Rights Division of the Department of Justice and empowered federal prosecutors to seek injunctions against interference with voting rights, but enforcement was slow and case-by-case. The Civil Rights Act of 1960 added provisions allowing federal courts to appoint referees to assist black voters in registering, but registration rates in the Deep South remained extremely low. By 1964, fewer than two percent of eligible black voters in Selma, Alabama, were registered.
Civil rights organizations, including the Student Nonviolent Coordinating Committee (SNCC) and the Southern Christian Leadership Conference (SCLC), conducted sustained voter registration campaigns across the South beginning in the early 1960s. Freedom Summer in 1964, organized by the Council of Federated Organizations, brought hundreds of volunteers to Mississippi to register black voters and established Freedom Schools across the state.
The Twenty-Fourth Amendment, ratified in January 1964, abolished the poll tax in federal elections. The Civil Rights Act of 1964 included provisions addressing voting discrimination but did not establish direct federal oversight of state registration procedures.
In January 1965, the SCLC and SNCC launched a voting rights campaign centered in Selma, Dallas County, Alabama, where local officials had systematically blocked black voter registration. On March 7, 1965-subsequently referred to as “Bloody Sunday”-approximately 600 marchers attempting to cross the Edmund Pettus Bridge were met by state troopers and county possemen who dispersed them with clubs and tear gas. The event was broadcast on national television.
President Lyndon B. Johnson addressed a joint session of Congress on March 15, 1965, calling for federal voting rights legislation and invoking the movement's anthem, “We Shall Overcome.” He submitted a bill to Congress the following day. A second march attempt on March 9 was turned back by the marchers themselves; a third, authorized by federal court order, departed Selma on March 21 and arrived in Montgomery on March 25, 1965.
The Voting Rights Act passed the Senate on May 26, 1965, by a vote of 77-19, and the House on July 9, 1965, by a vote of 333-85. President Johnson signed it into law on August 6, 1965.
The Act's core provisions included: a general prohibition on voting practices that discriminated on the basis of race or color (Section 2); a formula identifying jurisdictions with a history of low voter registration or turnout and recent use of a test or device as a prerequisite to voting (Section 4); a requirement that covered jurisdictions obtain federal preclearance before changing voting laws or procedures (Section 5); authorization for federal examiners to register voters in covered jurisdictions (Section 6); and suspension of literacy tests and similar devices in covered jurisdictions (Section 10). The coverage formula of Section 4 initially applied primarily to Alabama, Georgia, Louisiana, Mississippi, South Carolina, Virginia, and parts of North Carolina.
The Act's implementation produced rapid increases in black voter registration in covered states. By 1967, black voter registration in Mississippi had risen from approximately 6.7 percent to 59.8 percent of eligible voters. The Department of Justice dispatched federal examiners to numerous counties.
The Supreme Court upheld the Act's constitutionality in South Carolina v. Katzenbach (1966), ruling that Congress had broad discretion under the Fifteenth Amendment's enforcement clause and that the preclearance mechanism was a valid remedy for documented patterns of evasion. The Court upheld the Act's application to state elections in Katzenbach v. Morgan (1966).
The Act was amended and extended in 1970 for five years. The 1970 amendments expanded coverage to additional jurisdictions, suspended literacy tests nationwide, lowered the voting age to 18 for federal elections (subsequently codified by the Twenty-Sixth Amendment in 1971), and reduced the residency requirement for presidential elections. In Oregon v. Mitchell (1970), the Supreme Court upheld the lowering of the voting age for federal elections but ruled that Congress lacked authority to lower it for state elections.
Congress extended the Act in 1975 for seven years and added significant new provisions addressing language minority citizens. Section 203 required covered jurisdictions with substantial populations of citizens with limited English proficiency-including Spanish-speaking, Asian American, Native American, and Alaska Native populations-to provide bilingual election materials and assistance. The coverage formula was also revised, extending preclearance requirements to Texas, parts of California, and several other jurisdictions.
In City of Mobile v. Bolden (1980), the Supreme Court held that Section 2 of the Act, as originally enacted, required plaintiffs to prove discriminatory intent rather than merely discriminatory effect. Congress responded by amending Section 2 in 1982 to establish a results test: a voting practice violates the Act if it results in the denial or abridgment of the right to vote on account of race or color, based on the totality of circumstances. The amended Section 2 became the primary vehicle for challenging at-large election systems and districting plans alleged to dilute minority voting strength.
The Supreme Court construed the amended Section 2 in Thornburg v. Gingles (1986), establishing a three-part test for vote dilution claims involving multimember districts: the minority group must be sufficiently large and geographically compact to constitute a majority in a single-member district; the group must be politically cohesive; and the white majority must vote sufficiently as a bloc to defeat the minority group's preferred candidate. Gingles shaped redistricting litigation for decades.
The 1982 amendments also extended the preclearance requirement for 25 years.
Following the 1990 census, states created a number of majority-minority congressional districts under pressure from the Department of Justice and in response to Section 2 litigation. In Shaw v. Reno (1993), the Supreme Court held that a racial gerrymander claim could be brought under the Equal Protection Clause when a district's shape was so irregular as to rationally be explicable only as an effort to segregate voters by race. Subsequent decisions in Miller v. Johnson (1995) and Shaw v. Hunt (1996) invalidated specific majority-minority districts in Georgia and North Carolina.
Congress reauthorized the Act's expiring preclearance provisions in 2006 for an additional 25 years. The legislative record compiled in support of reauthorization ran to tens of thousands of pages documenting continued voting discrimination in covered jurisdictions. The reauthorization passed the Senate unanimously and the House by a vote of 390-33.
In Shelby County v. Holder (2013), the Supreme Court, in a 5-4 decision authored by Chief Justice John Roberts, held that the coverage formula of Section 4(b) was unconstitutional as applied because it relied on data more than 40 years old and did not reflect current conditions in the states it covered. The Court did not strike down Section 5 directly but rendered it inoperative by invalidating the formula that determined which jurisdictions were subject to it. States and localities previously covered by preclearance were no longer required to seek federal approval before changing their voting laws.
Following the decision, several states previously subject to preclearance enacted or implemented voting regulations, including voter identification requirements and changes to early voting procedures, that had previously been submitted to or blocked by the Department of Justice.
Multiple bills were introduced in Congress to update the coverage formula following Shelby County, including the Voting Rights Advancement Act and, later, the John R. Lewis Voting Rights Advancement Act. None passed both chambers as of the mid-2020s.
Section 2 litigation continued as the primary federal tool for challenging voting regulations alleged to discriminate on the basis of race. In Brnovich v. Democratic National Committee (2021), the Supreme Court, in a 6-3 decision authored by Justice Samuel Alito, upheld two Arizona voting regulations and articulated a set of factors for evaluating Section 2 results claims in the context of facially neutral time, place, and manner restrictions. The decision was viewed by critics as narrowing the scope of Section 2 vote denial claims.
In Allen v. Milligan (2023), the Supreme Court, in a 5-4 decision, upheld a lower court ruling that Alabama's congressional districting plan likely violated Section 2 by diluting black voting strength, applying the Gingles framework.
Scholars and jurists dispute whether the coverage formula invalidated in Shelby County had become obsolete or continued to identify jurisdictions with distinctive records of voting discrimination; see voting-rights-act-controversy-shelby-county-coverage-formula-controversy.
The proper standard for Section 2 results claims in vote denial cases-and whether Brnovich fundamentally altered the Gingles framework or merely clarified its application-remains contested among legal scholars; see voting-rights-act-controversy-brnovich-section-2-standard-controversy.
Some historians argue that the Act's preclearance mechanism represented a constitutionally anomalous federal supervision of state election procedures that exceeded Congress's enforcement power from the outset; see voting-rights-act-viewpoint-preclearance-federalism-viewpoint.
The degree to which majority-minority districting advances or dilutes minority political influence across broader legislative bodies remains a subject of ongoing debate among political scientists and voting rights scholars; see voting-rights-act-controversy-majority-minority-districting-controversy.
1. South Carolina v. Katzenbach, 383 U.S. 301 (1966). 2. Katzenbach v. Morgan, 384 U.S. 641 (1966). 3. Oregon v. Mitchell, 400 U.S. 112 (1970). 4. City of Mobile v. Bolden, 446 U.S. 55 (1980). 5. Thornburg v. Gingles, 478 U.S. 30 (1986). 6. Shaw v. Reno, 509 U.S. 630 (1993). 7. Miller v. Johnson, 515 U.S. 900 (1995). 8. Shelby County v. Holder, 570 U.S. 529 (2013). 9. Brnovich v. Democratic National Committee, 594 U.S. 647 (2021). 10. Allen v. Milligan, 599 U.S. 1 (2023). 11. David J. Garrow, Protest at Selma: Martin Luther King, Jr., and the Voting Rights Act of 1965 (New Haven: Yale University Press, 1978). 12. Steven F. Lawson, Black Ballots: Voting Rights in the South, 1944-1969 (New York: Columbia University Press, 1976). 13. J. Morgan Kousser, Colorblind Injustice: Minority Voting Rights and the Undoing of the Second Reconstruction (Chapel Hill: University of North Carolina Press, 1999). 14. Richard M. Valelly, The Two Reconstructions: The Struggle for Black Enfranchisement (Chicago: University of Chicago Press, 2004). 15. Chandler Davidson and Bernard Grofman, eds., Quiet Revolution in the South: The Impact of the Voting Rights Act, 1965-1990 (Princeton: Princeton University Press, 1994). 16. U.S. Commission on Civil Rights, Political Participation (Washington, D.C.: Government Printing Office, 1968). 17. Voting Rights Act of 1965, Pub. L. 89-110, 79 Stat. 437 (Aug. 6, 1965). 18. Fannie Lou Hamer, Rosa Parks, and Coretta Scott King Voting Rights Act Reauthorization and Amendments Act of 2006, Pub. L. 109-246, 120 Stat. 577 (July 27, 2006).