David Drabkin (Procurement Round Table) and Christopher Yukins (George Washington University Law School) discuss two reports done for the Acquisition Innovation Research Center (AIRC), on U.S Defense Department bid protests (bid challenges) and mandatory debarment (exclusion). This presentation was prepared for the annual Swedish public procurement conference (“Upphandlingskonferensen“) in Stockholm, May 4-5, 2023, hosted by Prof Andrea Sundstrand of Stockholm University.