Sen. John Stennis, D-Miss., speaks during a salute to his 41-year Senate career on Thursday. President Reagan praised him for leading "crucial battles" to build up U.S. military might and announced that the Navy's next nuclear-powered aircraft carrier will be named for him. Stennis, the president pro tem of the Senate and chairman of the Senate Appropriations Committee, was honored at a benefit dinner for the John C. Stennis Institute of Government and the John C. Stennis chair of political science at Mississippi State University.