Trump says he and wife test positive for COVID-19

Still, Trump has consistently played down concerns about being personally vulnerable to contracting COVID-19. "I felt no vulnerability whatsoever," he told reporters back in May.

After earlier positive cases close to the president, the White House instituted a daily testing regimen for the president's senior aides. Anyone who will be in close proximity to the president or vice president is also tested every day, including reporters.

While the Centers for Disease Control and Prevention recommends that people who have been in close contact with someone with COVID-19 quarantine for 14 days, White House staffers are considered essential workers. CDC's guidelines for exposed essential workers allows them to return to work if they take precautions, including taking their temperature before going into work, wearing a mask at all times and practicing social distancing.