Dr. Martin Luther King Jr., who was on a tour of the South to recruit volunteers for his "Poor People's Campaign", spoke to an overflow crowd at Mason Temple March 18, 1968.

Democratic socialist and NYC mayoral candidate Zohran Mamdani tells CNN why he dislikes capitalism and invokes Martin Luther King Jr.

Opinion: Martin Luther King Jr. was murdered 57 years ago. America still needs his wisdom. “When you think about most immigrants that are frightened, in some cases for children to go to school.

A federal judge is weighing a request from the Trump administration to unseal records of the FBI’s surveillance of Martin Luther King Jr. — files that the civil rights leader’s relatives ...

Dr. Martin Luther King Jr. speaks before crowd of 25,000 in Montgomery, Alabama, on March 25, 1965. (Stephen F. Somerstein / Getty Images.

Reporter's Notebook: The often overlooked message in MLK Jr.'s last speech 02:05. Documents related to the 1968 assassinations of Martin Luther King Jr. and Robert F. Kennedy will be released ...