Answer the following question: Information: - Thomas E. Mann (born September 10, 1944) is the W. Averell Harriman Chair and a senior fellow in Governance Studies at the Brookings Institution, a non-partisan think tank based in Washington, D.C. He primarily studies and speaks on elections in the United States, campaign finance reform, Senate and filibuster reform, Congress, redistricting, and political polarization. - Norman J. Ornstein (born October 14, 1948) is a political scientist and resident scholar at the American Enterprise Institute (AEI), a Washington D.C. conservative think tank. He was the co-writer (along with Thomas E. Mann) of "It's Even Worse Than It Looks: How the American Constitutional System Collided With the New Politics of Extremism". - The Brookings Institution is a century-old American research group on Think Tank Row in Washington, D.C. It conducts research and education in the social sciences, primarily in economics, metropolitan policy, governance, foreign policy, and global economy and development. Its stated mission is to "provide innovative and practical recommendations that advance three broad goals: strengthen American democracy; foster the economic and social welfare, security and opportunity of all Americans; and secure a more open, safe, prosperous, and cooperative international system." - Michael J. Malbin ( born June 9 , 1943 ) is the executive director of the Campaign Finance Institute in Washington DC , which he helped found in 1999 , and professor of Political Science at the University at Albany , The State University of New York . Recent co-authored books include The Election after Reform : Money , Politics and the Bipartisan Campaign Reform Act ( 2006 ) , Life after Reform : When the Bipartisan Campaign Reform Act Meets Politics ( 2003 ) and Vital Statistics on Congress , which he co-authors with Norman Ornstein and Thomas E. Mann . During 1997 -- 98 , Malbin was a guest scholar at The Brookings Institution , where he finished The Day after Reform : Sobering Campaign Finance Lessons from the American States ( co-authored by Thomas L. Gais . ) From 1990 -- 1998 he was director of the Center for Legislative and Political Studies at SUNY 's Rockefeller Institute , where he was the principal investigator for Presidential - Congressional Relations for a collaborative , multi-university project funded by the National Science Foundation to create a congressional history database . Earlier books include Limiting Legislative Terms ( 1992 ) , Money and Politics in the United States ( 1984 ) , Parties , Interest Groups and Campaign Finance Laws ( 1980 ) , Unelected Representatives : Congressional Staff and the Future of Representative Government ( 1980 ) , and Religion and Politics : The Intentions of the Authors of the First Amendment ( 1978 ) . Before joining the University at Albany 's faculty in 1990 , Malbin worked for the joint U.S. House and Senate Iran - Contra Committee ( 1987 ) , the House Republican Conference ( 1988 ) and as speech writer to Secretary of Defense Richard B. Cheney ( 1989 -- 90 ) . He has also been a presidential appointee to the National Humanities Council from 1990 -- 94 and a visiting professor at Yale University ( 1996 ) . Before government service , he was a resident fellow at The American Enterprise Institute for Public Policy Research ( 1977 -- 86 ) and a reporter... - William Averell Harriman (November 15, 1891July 26, 1986) was an American Democratic politician, businessman, and diplomat. He was the son of railroad baron E.H. Harriman. He served as Secretary of Commerce under President Harry S. Truman and later as the 48th Governor of New York. He was a candidate for the Democratic presidential nomination in 1952, and again in 1956 when he was endorsed by President Truman but lost to Adlai Stevenson both times. - A think tank, policy institute, or research institute is an organization that performs research and advocacy concerning topics such as social policy, political strategy, economics, military, technology, and culture. Most policy institutes are non-profit organizations, which some countries such as the United States and Canada provide with tax exempt status. Other think tanks are funded by governments, advocacy groups, or businesses, or derive revenue from consulting or research work related to their projects. - The American Enterprise Institute for Public Policy Research, known simply as the American Enterprise Institute, or AEI, is a conservative think tank based in Washington, D.C. Its research is dedicated to issues of government, politics, economics and social welfare. After reading the paragraphs above, we are interested in knowing the entity with which 'michael j. malbin' exhibits the relationship of 'occupation'. Find the answer from the choices below. Choices: - advocacy - governor - military - partisan - political scientist - politician - research - scholar - scientist - writer
Answer:
political scientist