Defense officials are facing an uphill battle to convince Capitol Hill they've made the right choice in seeking to retire a nuclear-powered, Nimitz-class aircraft carrier more than two decades before the end of its life expectancy. These officials have sought to persuade lawmakers the move will help the service invest in modernization rather than legacy systems, but members of key committees are skeptical of the proposal to not refuel the Harry S. Truman (CVN-75). The plan to retire the carrier...