David Lewis, professor of political science, Vanderbilt University
More power has moved to the White House and away from Congress over the past few decades. You see it in the number of executive orders and rule-making efforts originating in the White House. New research shows this can cause gyrations for the career work force with people deciding to either quit on philosophical grounds or stick around and wait out a current president. David Lewis, professor of political science at Vanderbilt University, offers insight to Federal Drive with Tom Temin.