How did Harry Truman's presidency impact the civil rights of African Americans in the late 1940s and early 1950s

Showed federal support for desegregation--Truman order the desegregation of federal troops which began a trend of desegregation.

Truman's order for an end to discrimination, Executive Order 9981, led to the desegregation of all the armed forces. His federal support for desegregation laid the ground work for Supreme Court Cases which desegregated universities and schools.