Burdett A. Loomis and Marc C. Johnson

Burdett A. Loomis is an emeritus professor of political science at the University of Kansas and the editor and author of many books on American politics, including Esteemed Colleagues: Civility and Deliberation in the U.S. Senate. 

Marc C. Johnson is a Mansfield Center fellow at the University of Montana and the author of two books on U.S. Senate history, including most recently Tuesday Night Massacre: Four Senate Elections and the Radicalization of the Republican Party.