Mike Pence's chief of staff tests positive for COVID-19

Marc Short, chief of staff to U.S. Vice President Mike Pence, tested positive for COVID-19 on Saturday, Devin O'Malley, the vice president's press secretary, said in a statement, adding that Short was in quarantine and the process of contact tracing had been initiated.

"Vice President Pence and Mrs. Pence both tested negative for COVID-19 today, and remain in good health," the statement said, adding that Pence will maintain his schedule in accordance with the CDC guidelines for essential personnel.

Another of Pence's top political aides, Marty Obst, has also tested positive for COVID-19, Bloomberg reported on Saturday.