Ray Mabus has had his job since June 2009, making him the longest serving Navy secretary since World War I. In that time, he has shifted the focus of the Navy and Marine Corps to renewable energy and increased experimentation with biofuels, pushed to open previously closed jobs to women and doubled the number of ships ordered under the previous administration.

Ahead of the Navy League Sea Air Space exposition, which starts May 16, Mabus sat down with the Washington Examiner to talk about his biggest priorities as he finishes his time in office, and what it all means for the next administration.