President Trump takes off his face mask at the White House upon his return from Walter Reed medical center on Monday. Photo: Nicholas Kamm/AFP via Getty Images President Trump was back in the Oval Office on Wednesday, less than 48 hours after he staged a dramatic, at times maskless, return to the White House from Walter Reed medical center. The president’s doctor says that Trump has remained “symptom-free,” but it’s not clear what treatments he is still receiving for his case of COVID-19. Over the past few days, Trump has been using his own experience to continue to downplay the risk of the coronavirus. On Tuesday, several more people were added to the White House cluster, including senior Trump adviser Stephen Miller and a senior Pentagon official. The Trump campaign is also reportedly considering plans for the president to return to the campaign trail early next week, in accordance with his wishes, though it’s far from clear how good of an idea that would be, safety-wise. Meanwhile, Trump has returned to nonstop tweeting, at one point sending out more than 100 updates in less than 24 hours. (One tweet comparing COVID-19 to the flu was flagged for “disinformation” by Twitter…