US President Donald Trump’s approval rating has fallen to the lowest level of his presidency, with an overwhelming majority of Americans concerned the US war with Iran will last a long time, according to a Reuters/Ipsos poll that concluded on Monday. Just 33 per cent of respondents in the four-day survey said they approved of Trump’s performance in the White House, while 64 per cent disapproved. Trump’s approval rating, down from 35 per cent in a poll that closed earlier this month and lower...