the secretary of transportation heads the department of transportation. this department is the federal executive branch responsible for the national highways and railroads. it also focuses on airline safety. this department manages Amtrak and the coast guard. joe donnelly advocates strongly for the elimination of energy waste. he believes all fossil fuels should be transferred to renewable energy sources as soon as possible. another way to save energy is by mass transportation such as buses, trains, and airplanes. this could also include carpooling. therefore, the department should work hard to maintain these opportunities to eliminate the wasting of fossil fuels.