//President Trump's national security adviser tests positive for COVID-19

President Trump's national security adviser tests positive for COVID-19

President Donald Trump’s national security adviser, Robert O’Brien, has tested positive for COVID-19, according to an official familiar with what happened.O’Brien’s diagnosis marks the highest-ranking Trump administration official known to have tested positive. It’s unclear when O’Brien last met with Trump. Their last public appearance together was over two weeks ago during a visit to U.S. Southern Command in Miami on July 10.O’Brien, one of