Roger H. Davidson is professor emeritus of government and politics at the University of Maryland, and has served as visiting professor of political science at the University of California, Santa Barbara. He is a Fellow of the National Academy of Public Administration. During the 2001-2002 academic year, he served as the John Marshall Chair in political science at the University of Debrecen, Hungary. His books include Remaking Congress: Change and Stability in the 1990's, co-edited with James A. Thurber (1995), and Understanding the Presidency, Seventh Edition, co-edited with James P. Pfiffner (2012). Davidson is co-editor with Donald C. Bacon and Morton Keller of The Encyclopedia of the United States Congress (1995).

Congress and Its Members, Sixteenth Edition, by Roger H. Davidson, Walter J. Oleszek, Frances E. Lee, and Eric Schickler, offers readers current, comprehensive coverage of Congress and the legislative process by examining the tension between Congress as a lawmaking institution and as a collection of politicians constantly seeking re-election.

The Sixteenth Edition of this best-selling text considers the 2016 elections and discusses the agenda of the new Congress, White House-Capitol Hill relations, party and committee leadership changes, judicial appointments, and partisan polarization, as well as covering changes to budgeting, campaign finance, lobbying, public attitudes about Congress, reapportionment, rules, and procedures. Always balancing great scholarship with currency, the best-seller features lively case material along with relevant data, charts, exhibits, maps, and photos.