The following year , CORE along with the Student Nonviolent Coordinating Committee ( SNCC ) and the National Association for the Advancement of Colored People ( NAACP ) helped organize the " Freedom Summer " campaign - aimed principally at ending the political disenfranchisement of African Americans in the Deep South . Operating under the umbrella coalition of the Council of Federated Organizations ( COFO ) , volunteers from the three organizations concentrated their efforts in Mississippi . In 1962 only 6.7 percent of African Americans in the state were registered to vote , the lowest percentage in the country . This involved the formation of the Mississippi Freedom Democratic Party ( MFDP ) . Over 80,000 people joined the party and 68 delegates attended the Democratic Party Convention in Atlantic City and challenged the attendance of the all-white Mississippi representation
Democratic Party Convention
1964 Democratic National Convention
Congress of Racial Equality