Because of his leftist views, which had included his support of the Communist Party USA ticket during the 1936 presidential election and his strong support of Progressive Party candidate Henry A. Wallace during the 1948 presidential election, Copland was investigated by the FBI during the Red scare of the 1950s. He was included on an FBI list of 151 artists thought to have Communist associations and found himself blacklisted, with "A Lincoln Portrait" withdrawn from the 1953 inaugural concert for President Eisenhower. Called later that year to a private hearing at the United States Capitol in Washington, D.C., Copland was questioned by Joseph McCarthy and Roy Cohn about his lecturing abroad and his affiliations with various organizations and events. In the process, McCarthy and Cohn neglected completely Copland's works, which made a virtue of American values. Outraged by the accusations, many members of the musical community held up Copland's music as a banner of his patriotism. The investigations ceased in 1955 and were closed in 1975.