In 1968, Michener served as the campaign manager for the third-term run of the twice-elected U.S. Senator Joseph S. Clark of Pennsylvania. Michener later served as Secretary for the 1967–1968 Pennsylvania Constitutional Convention. Also that year, Michener was a member of the Electoral College, serving as a Pennsylvania Democrat. He wrote about that experience in a political science text "Presidential Lottery: The Reckless Gamble in Our Electoral System", which was published the following year. In it, he suggested alternate systems, including using a direct popular vote by majority for the office of President of the United States and other more creative solutions.