Britain, France and Germany urge all sides 'to seize the diplomatic opportunity' to salvage the 2015 nuclear deal

US president and VP Harris call on Congress to act swiftly to address policing reform, including by approving a bill named for Floyd

Trump left State Department position unfilled for two years; changes to law mean nominee will have to be approved by Senate

Moscow claims Ukrainian envoy caught 'red-handed' trying to obtain sensitive information; Kyiv protests 'illegal' detention, responds in kind

However, US president pleased that Tehran still taking part in Vienna talks aimed at finding a way back to nuclear deal

Moscow says American ambassador should head home for consultations, warns it may later take 'painful measures' against US business interests

US president calls the move a 'measured and proportionate' response to Russian actions, says he invited Putin to hold a summit to 'launch a strategic stability dialogue'

Measures also target Moscow’s ability to borrow money; Russia denounces move, warns of retaliation

White House said planning to expel Russian diplomats, announce financial measures over alleged election interference and SolarWinds cyberattack

US takes calculated risk that adversarial forces in war-torn country can still be countered and that he won’t be remembered as president who underestimated their resilience