According to US media reports, White House officials stated that starting from August 3, local time, staff in the President’s Executive Office will be forced to undergo random tests for the new coronavirus.

  In the report, an official familiar with the situation said: “We are working to protect the health and safety of the entire White House. Our random testing of the staff of the President’s Executive Office has been going on for several months. Now this will become mandatory. Not voluntary."

  President Trump's national security adviser Robert O'Brien tested positive for the new crown virus last week. O'Brien is currently the highest-level official confirmed by the Trump administration. It is not clear when O'Brien last met with President Trump. Their last public appearance was on July 10, two weeks ago, when they were visiting the US Southern Command in Miami. (CCTV reporter Xu Dezhi)