Supporters and non-supporters of US President Donald Trump exchange gestures and hold signs and flags on October 4, 2020 outside of Walter Reed Medical Center in Bethesda, Maryland. - US President Donald Trump has "continued to improve" as he is treated for Covid-19, his doctors said October 4, 2020, revealing he could be discharged as early as October 5, 2020. His medical team said his oxygen levels had dropped twice briefly in recent days and he is being treated with steroids, but they gave an upbeat assessment of the 74-year-old president's health and outlook.