I teach and research American politics at the University of Miami. I specialize in the study of Congress, political parties, interest groups, elections, political history, and political institutions. I have published research on filibustering, legislative parties, Congressional rules, and bill cosponsorship in the U.S. House. teach and research American politics at the University of Miami. I specialize in the study of Congress, political parties, interest groups, elections, political history, and political institutions. I have published research on filibustering, legislative parties, Congressional rules, and bill cosponsorship in the U.S. House.