Understand the 13th, 14th, and 15th amendments.
13th: outlawed slavery throughout the US
- 14th: reversed Dred Scott by making all people who are born or naturalized in the US (black or white) citizens of the US and the state in which they reside.
- privileges and immunities clause - citizens from out of state have same legal rights as locals
- due process clause - prohibits states from depriving anyone of life, liberty or property without due process of law
- equal protection clause - states to provide equal treatment to all people within their boundaries
15th: states can not prevent people from voting on the grounds of race, color, or previous conditions of servitude