Conversation so far:
What votes did Bernie Sanders get in the Brady Bill?
the bill passed by a vote of 238–187
What year did Bernie Sanders attend University?
Bernie Sanders attended the University of Chicago in 1964
Was Bernie Sanders a part of other things during those years when he attended the university of Chicago?
While a student, Bernie Sanders was an active protest organizer for the Congress of Racial Equality as well as for the Student Nonviolent Coordinating Committee during the civil rights movement.

Question: What was his role in these movements?
Self-contained rewrite: What was his role in the Congress of Racial Equality as well as for the Student Nonviolent Coordinating Committee during the civil rights movement?