President-elect Barack Obama plans to officially introduce Senator Hillary Clinton as his nominee to be Secretary of State today. He is also expected to name retired General James Jones to be National Security Adviser and to announce that Robert Gates will remain as Secretary of Defense. Jones is the former commander of NATO. Since retiring, he has served on the boards of Chevron and Boeing. Obama will also announce Eric Holder for Attorney General, Janet Napolitano for secretary of Homeland Security, and Susan Rice to become ambassador to the United Nations.