During 6 years, Manion served in the Committee of Externarl Relations of the United States Senate. He’s a consumed musitian, he played in restaurants while studying at Graduate School of Business of the Universtity of Chicago and in Notre Dame University, where he obtained a Ph.D. in Government. He has taught in the departments of politics, religion, and international relations at Boston University, the Catholic University of America, and Christendom College, and is the director of the Campaign for Humanae Vitae.