Iranian proposal rejected by Trump would open strait before nuclear talks, Iran official says

May 2 (Reuters) - An Iranian proposal so far rejected by U.S. President Donald Trump would open shipping in the Strait of Hormuz and end the U.S. blockade of Iran while leaving talks on Iran's nuclear programme for later, a senior Iranian official said on Saturday.Four weeks since the United States and Israel suspended their bombing campaign against Iran, no deal has been reached to end a war that has caused the biggest disruption ever to global energy supplies.