washington obama administration like every u.s. administration since 1949 remain commit nato military alliance security commitments treaty u.s. secretary state john kerry say thursday want nato partner clear stand administration like every single administration republican democratic alike since 1949 remain fully commit nato alliance security commitments article kerry tell news conference respond comment republican presidential nominee donald trump tell new york time elect might abandon nato guarantee member include unite state would defend others attack kerry say u.s. remain commit nato alliance security commitments