Defense Secretary Mark Esper called on Congress today to take a "leap" and support the Pentagon's plans to divest legacy weapon systems so new investments can be made in emerging technologies. "We have to bridge this gap now between what was Cold War-era systems . . . and make this leap into great power competition with Russia and China, principally China," he said today at the Center for Strategic and International Studies. Esper conceded that Congress is notoriously resistant to...