It has been credited with helping pass  the 1964 Civil Rights Act, which ended segregation in public places  and banned employment discrimination, and the 1965 Voting Rights Act, which outlawed discriminatory  voting practices.
On lui attribue le mérite d'avoir aidé à passer le Civil Rights Act de 1964, qui a mis un terme à la ségrégation dans les lieux publics et interdit la discrimination à l'embauche, ainsi que le Voting Rights Act de 1965, qui a proscrit les pratiques de vote discriminatoires.