Race is the answer to your question
The Fourteenth Amendment to the Constitution of the United States ('XIV Amendment') is one of the post-Civil War amendments, and includes, among others, the Due Process Clause and the Equal Protection Clause. It was proposed on June 13, 1866, and ratified on July 9, 1868.
The amendment provides a broad definition of national citizenship, which overrides the decision of Dred Scott v. Sandford (1857), who had excluded slaves and their descendants, from possessing constitutional rights. It requires states to provide equal protection before the law to all persons (not just citizens) within their jurisdictions. The importance of the Fourteenth Amendment was exemplified when it was interpreted to prohibit racial segregation in public schools in the Brown v. Case. Board of Education.
Answer:
Primary sources, because they can be more accurate about a certain incident or event.
Explanation:
Lee Harvey Oswald was responsible for killing/shooting John F. Kennedy.
He went to Texas to raise more Democratic Party presidential campaign funds, wanted to begin his little 'quest' for reelection, and because the Kennedy-Johnson ticket just barely won Texas.