Donald Trump has extended America’s national shutdown for a month, bowing to public health experts, and scientific reality, and warning that the worst of the coronavirus pandemic is yet to come.

Speaking in the White House Rose Garden, the US president claimed that, if his administration keeps the death toll to 100,000, it will have done “a very good job” – a startling shift from his optimistic predictions of a few days ago when he said he hoped to restart the economy by Easter.

Trump also undermined his plea for unity by uttering falsehoods, verbally abusing reporters and making incendiary…