Jon R. Bond received his Ph.D. from the University of Illinois at Urbana–Champaign and is currently a professor of political science at Texas A&M University. His research analyzes the policy making process and the operation of democracy in American politics. Specifically, he is interested in the interactions of American political institutions, especially Congress and the presidency, and how electoral motivations affect democratic responsiveness in American political institutions. He has published more than three-dozen chapters and journal articles on presidential-congressional relations, congressional elections, and public policy. He served as president of Pi Sigma Alpha, the national political science honor society from 2006–2008, and president of the Southern Political Science Association, the oldest regional political science association from 2006–2007. Kevin B. Smith received his Ph.D. from the University of Wisconsin-Milwaukee and is currently a professor of political science at the University of Nebraska–Lincoln, where he is also co-director of the UNL Political Science Physiology Lab. His primary research focus is on the biology of political attitudes and behavior. Smith is the recipient of his university’s College of Arts & Sciences Outstanding Research and Creative Achievement Award. Lydia M. Andrade received her Ph.D. from Texas A&M University and is Interim Dean of the College of Humanities, Arts, and Social Sciences as well as a professor of political science at the University of the Incarnate Word in San Antonio, TX. She is an award-winning teacher and author of a variety of teaching and learning guides including supplements for this text. She participates regularly in summer workshops with The College Board and is known for her work on the presidency, foreign policy, women and politics, and teacher diversity.