U.S. Senator Roger Wicker, R-Miss., the highest-ranking Republican on the U.S. Senate Armed Services Committee (SASC), led his colleagues in a hearing examining the nominations of two senior Department of Defense officials for cyber and intelligence: the nominee to be the next Under Secretary of Defense for Intelligence and Security, Dr. Tonya P. Wilkerson, and the nominee to be the first Assistant Secretary for Cyber Policy, Michael L. Sulmeyer.