Over the past several decades, policymaking power has flowed from Congress to the executive branch, as presidents and agency heads have demonstrated an increased willingness to exercise unilateral powers to bypass a Congress that seems to be perpetually gridlocked. This development arguably has weakened the role of Congress in governance. New research from Brian D. Feinstein, Wharton professor of legal studies and business ethics, challenges that narrative by exploring the strength of Congress’s oversight powers. He spoke to Knowledge at Wharton about his paper, “ Congress in the Administrative State ,” which also offers a course of corrective action for policymakers.  An edited transcript of the conversation follows. Knowledge at Wharton: One thing people on both sides of the aisle probably would agree on is that the role of Congress is in a decline, that they’re not accomplishing much these days. But you present an alternative view in this paper. Can you explain that? Brian D.…