Carey became politically active and allied with
William L. Dawson, a leading African-American politician on the city's South Side. The speech was titled "Let Freedom Ring". Historian
Drew Hansen has opined that
Martin Luther King Jr. plagiarized from this speech in creating his own celebrated "
I Have a Dream" speech, noting that many of the motifs and tropes were part of a common language. Carey was appointed by president
Dwight D. Eisenhower as an alternate delegate from the United States to the
United Nations, serving from 1953 to 1956.
President's Committee on Government Employment Policy (1955–61) From 1955 to 1961, he served on the President's Committee on Government Employment Policy; on August 3, 1957, he was appointed by President Dwight D. Eisenhower as chair of the committee, succeeding Maxwell Abbell, who died. Carey was the first African American to hold this position. Already a confidante of
Martin Luther King Jr. and active in the national
civil rights movement, Carey worked to end employment discrimination in the government against blacks.
Cook County Circuit Court judge (1966–79) Carey was appointed as a county Circuit Court judge in Chicago in 1966, by which time he had switched parties to become a Democrat. He served until 1978, when he was forced by law to retire from the bench at 70 years of age. Because of the court's large caseload, he was reappointed to serve another year. ==AME Church==