evidence: Blinken says China helping fuel Russian threat to Ukraine US Secretary of State Antony Blinken has warned Washington will act if China does not stop supplying Russia with items used in its assault on Ukraine. [...] The visit - the second in 10 months made by Mr Blinken - forms part of a significant increase in dialogue and diplomacy between these rival powers as they attempt to put relations on an even keel after a period of immense tension last year.