breaking news in the russia-ukraine conflict. the united states is waiting for reaction from russian president vladimir putin after delivering a high-stakes response to russia s demands. today, ambassador sullivan delivered our written response in moscow. all told, it sets out a serious diplomatic path forward, should russia choose it. the document we have delivered includes concerns of the united states and our allies and partners about russia s actions that undermine security. a principaled and pragmatic evaluation of the concerns russia has raised and our own proposals for areas where we may be able to find common ground. blinken also reiterated nato s open-door policy, rejecting moscow s demands to ban ukraine from the organization. following blinken s statement, ukrainian presidential adviser said the u.s. response is quote the right strategy and russia should take the opportunity to use diplomacy to avoid a negative scenario in his words. joinings now, democratic senator