A growing tide of US bipartisan support for pro-democracy protests in Hong Kong has raised the pressure on the White House to act in the event of a crackdown – including the threat of removing the city’s special trade status.On Wednesday US President Donald Trump urged his Chinese counterpart Xi Jinping to resolve the situation “humanely” after growing criticism of his previous comments – including the acceptance of Beijing’s characterisation of the protests as “riots”.As tensions escalate in…