hello, i'm christian fraser. you're watching context on bbc news. the last ditch diplomacy continues over ukraine. the white house has tonight called on china to use its influence with moscow, russia's foreign ministry says despite the disagreements there is still some space for a negotiation. president biden says he'll announce his supreme court nominee in a month's time, and confirms it will be the first african american woman. and lifting covid restrictions , most of them in england ended today , many other countries are making similar moves. tonight with the context, nathalie tocci, political scientist and former adviser to the eu's foreign policy chief and the american entrepreneur and former white house communications director, anthony scaramucci —