President Donald Trump has said that the 2015 Iran nuclear agreement, negotiated under President Barack Obama, was "one of the worst and most one-sided transactions the United States has ever entered into". He famously withdrew the US from the deal in 2018. And now, with the ceasefire between Washington and Tehran extended, Mr Trump has vowed to secure a superior deal to limit Iran's nuclear capabilities. We ask the BBC's diplomatic correspondent Paul Adams what that will take. The memorandum

Tag-uri: Donald Trump