President Trump’s comments upon his return from the hospital may pose problems for business reopenings. : President Trump has returned to the White House after a three-day stay at Walter Reed National Military Medical Center for treatment of his Covid-19 infection. But speculation that he might adopt a more cautious attitude toward the disease was quickly erased. “Don’t let it dominate your lives,” Mr. Trump said of the coronavirus in a video recorded at the White House last night. “Don’t be afraid of it.