- Voting Rights Act (VRA)
- The 1965 federal law that bans racial discrimination in voting. Its best-known parts are Section 2 and Section 5.
- Section 2
- The part of the VRA that lets voters sue over voting rules or district maps that weaken their votes because of race, known as vote dilution. It applies nationwide.
- Preclearance (Section 5)
- A requirement that places with a history of discrimination get federal approval before changing voting rules. It has not operated since Shelby County v. Holder in 2013.
- Majority-minority district
- A district where a racial or ethnic minority group makes up most of the voters. Courts have ordered these districts under Section 2 so that group can elect its preferred candidates.
- Gerrymandering
- Drawing district lines to help one party or group. "Packing" crowds a group's voters into a few districts, and "cracking" spreads them thinly across many.
- Racial gerrymander
- A map in which race was the main factor in drawing lines without a strong enough legal reason. The Supreme Court found Louisiana's 2024 map to be one in Callais.
- Mid-decade redistricting
- Redrawing congressional maps between the once-a-decade censuses. Several states did this in 2025 and 2026 before the midterms.
- Felony disenfranchisement
- Laws that take away the right to vote from people convicted of felonies. Rules range from no restrictions in Maine and Vermont to lifetime bans for some crimes in other states.
- Poll tax
- A fee charged in order to vote. Southern states used poll taxes after Reconstruction to keep Black voters and poor voters from the polls, and the 24th Amendment banned them in federal elections in 1964.
- Documentary proof of citizenship
- Papers such as a passport or birth certificate showing US citizenship. The SAVE America Act would require them to register to vote in federal elections.
- Provisional ballot
- A ballot you can cast when your eligibility is in question at the polls. Officials count it after they confirm you are eligible.
- State Voting Rights Act
- A state law that adds voting protections, such as its own rules against vote dilution or its own preclearance system. LDF lists 11 states with one.