In 1962 Sellers enrolled in Howard University. After the 1960 protest, Sellers' father had forbidden his son's jeopardizing himself by becoming an activist. Nevertheless, Sellers became involved with the Nonviolent Action Group (NAG) where he met Stokely Carmichael. Carmichael deeply inspired Sellers as he was like-minded and a prominent face of the movement on campus. Carmichael's house became NAG headquarters, where Malcolm X himself frequented and advocated to students about the idea of black nationalism, which often criticized MLK's entirely peaceful and inclusive stance. Although some were reluctant, it was an interesting concept. Right before the March on Washington, Bayard Rustin, head coordinator of the movement, contacted NAG asking them to supply what they could to the march. Sellers and others supplied signs and food during the march. As sellers walked through the masses at the march, he could hear Malcolm X's message in his ear.