Clarence Manion, the retired dean of the Notre Dame School of Law, became one of the most thoughtful conservatives from the mid-1950s through the 1970s. The “Manion Forum” began broadcasting in 1954 and continued until his death in 1979. In 1952, Manion would head the “Democrats for Eisenhower” organization. President Dwight D. Eisenhower named him as the chairman of a commission to study how to return to states the power that the federal government had taken away under the Roosevelt and Truman administration. When Manion did not back away from his support of something the administration opposed, Eisenhower fired him....