moscow russia warn wednesday new u.s. sanction moscow approve house representatives take already batter tie uncharted water say close take retaliatory measure russia respond u.s. house representatives overwhelmingly vote impose new sanction moscow force president donald trump obtain lawmakers permission ease sanction russia moscow initially hop trump would work repair relationship slump post-cold war low watch frustration allegations moscow interfere last year u.s. presidential election concern trump associate russia tie kill hop detente russia flatly deny meddle accusations wednesday russian deputy foreign minister sergei ryabkov tell interfax news agency late u.s. sanction move leave room improve tie moscow washington near future take relationship uncharted water already extremely negative impact process normalize relations ryabkov tell interfax u.s.-russia relations enter uncharted territory political diplomatic sense add russia repeatedly warn unite state retaliate see hostile move ryabkov make clear moscow grow tire show restraint russian foreign ministry say early month many american spy operate russia diplomatic cover might expel retaliate washington expulsion 35 russian diplomats last year warn reflect rise frustration moscow trump administration refusal hand back two russian diplomatic compound seize time diplomats send home many russian politicians believe trump political opponents congress successfully reduce u.s. president room maneuver russia almost nil ryabkov tell interfax new sanction bill brainchild u.s. congressmen hat russia want box trump konstantin kosachyov head foreign relations committee russia upper house parliament call moscow devise painful response u.s. move moscow warn new u.s. sanction take tie uncharted water