Charles Edward Merriam

Charles Edward Merriam Jr. was an American professor of political science at the University of Chicago, founder of the behavioral approach to political science, a trainer of many graduate students, a prominent intellectual in the Progressive Movement, a prolific author, and an advisor to several U.S. Presidents. Upon his death, *The New York Times* called him "one of the outstanding political scientists in the country."

Source: [Wikipedia](https://en.wikipedia.org/wiki/Charles_Edward_Merriam)