COVID-19 | US President Donald Trump said from his hospital room on Saturday that he felt “much better” but the next few days will be “the real test” of his treatment for Covid-19, capping a day of contradictory messages from the White House about his condition.

In a four-minute video posted on Twitter, Trump, looking tired and wearing a jacket and open-necked shirt, said he “wasn’t feeling so well” when he first arrived at Walter Reed National Military Medical Center on Friday...