Davis became involved in the civil rights movement. In January 1957, he cofounded the Southern Christian Leadership Conference (SCLC) with Martin Luther King Jr. and others in his church.[5] King served as the president of the SCLC, while Davis was vice president.[5] The Louisiana Leadership Conference, a satellite organization of the SCLC, was formed in March 1957, with Davis and T. J. Jemison elected as its co-chairs. Associated with the SCLC, they conducted voting registration drives for African Americans.[6]
Morrison's successor, Victor H. Schiro, resisted desegregation, and Davis led a march of 7,000 to 10,000 on city hall on September 30, 1963.[9][10] Later that week, he presented a list of demands to the New Orleans City Council.[11] He and Reverend Avery Alexander were arrested at a sit-in at city hall in November[12] and he continued to organize a sit-in in city hall's cafeteria and outside the mayor's office, with people getting arrested daily.[13] The campaign was halted after 47 were arrested, including members of the Congress of Racial Equality,[14] before Davis and Alexander got to meet with Schiro.[15] Ultimately, the group was able to win some progress on their demands, but not on all of them.[16]
In 1975, Davis and Jim Singleton were put forward as replacement candidates to represent District B on the New Orleans City Council, following the resignation of Eddie Sapir to serve as a city judge. Davis won the appointment by a 6–1 vote. He became the first African American to serve on the New Orleans City Council since the Reconstruction era.[19] Davis won a special election for the remainder of Sapir's term in October 1976,[20] but lost the 1977 election for a new term to Singleton.[21]
^"N.O. Council Hears Negroes' Demands". The Town Talk. United Press International. October 4, 1963. p. 7. Retrieved September 6, 2022 – via Newspapers.com.
^"7 Negro Leaders Meet With Schiro". The Town Talk. United Press International. November 15, 1963. p. 30. Retrieved September 7, 2022 – via Newspapers.com.