| Term | Definition |
| Voting age population | Citizens who are eligible to vote after reaching the mininmum age requirement. |
| Registered voters | People who are registered to vote. |
| Motor-voter law | Law requires states to allow people to regitster to vote when applying for drivers licenses and to provide registration through the mail and at some state offices that serce the disabled or provide public assistence. |
| Literary test | A requirement that citizens pass a literacy test in order to register to vote. |
| Poll tax | A requirement that citizens pay a tax in order to register to vote. |
| Grandfather Clause | A clause in registration laws allowing people who do not meet registration requirements to vote if they or their ancestors had voted before 1867. |
| White primary | The practice of keeping blacks from voting in the southern states' primaries theough arbitrary use of registration requirements and intimidation. |
| Voting Rights Act of 1965 | Suspended the use of literacy tests and authorized the appointment of federal examiners who could order the registration of blacks in states and counties where fewer than 50 percent of the voting age population were registered or had voted in the lastpresidential election. |
| Voting Rights Act of 1970 | gave eighteen year olds the right to vote in federal elections beginning January 1, 1971. |
| Australian ballot | A government printed ballot of unifomr dimensions to be cast in sevret that many states adopted around 1890 to reduce voting fraud associated with party printed ballots. |
| Activists | People who tend to participate in all forms of politics. |