AP Top News at 2:50 a.m. EDT

National security question trips up Sen. Darline Graham in South Carolina debateUS Rep Byron Donalds wins GOP nod for Florida governor against Ex-Rep David Jolly for the DemocratsElection takeaways: Donalds joins historic field and progressive scores upset victory in FloridaA warehouse burns near Moscow. In Ukraine, drone crews prepare to strike againIn Israel, military service debate spotlights ultra-Orthodox Jews and their growing cloutMobile gold miners in eastern Congo complicate health workers' efforts to contain EbolaJason Arday's death sparks UK debate over academic rigor, racism after media 'frenzy'South Korean and US militaries shorten drills by about half after Trump ordered a reductionShares in Chinese humanoid robot maker Unitree soar in Shanghai trading debutTrump says US has