Editorial: The US president is finding it hard to navigate his own erratic Tehran policy, not least when it comes to opening the vital Strait of Hormuz

Donald Trump had proposed tolling the Strait of Hormuz, but 24 hours later, he was singing a different tune.

President Donald Trump has U-turned on his threat to charge cargo ships transiting the Strait of Hormuz as much as 20% - but the US and Iran have continued trading strikes as…