The Secretary of the Navy who announced the naming of the 4th US Navy vessel for the state of Iowa also served as governor of what state?
USS Iowa (SSN-797): "Iowa" (SSN-797), a "Virginia"-class submarine , will be the fourth U.S. Navy vessel named for the state of Iowa. USS Iowa (SSN-797):  Secretary of the Navy Ray Mabus officially announced the name on September 2, 2015, during a news briefing at Iowa State University.
i don't know