White House staffer has tested positive for coronavirus, US media reported Wednesday, the latest case among Donald Trump's administration since last week's election.Political director Brian Jack's diagnosis came over the weekend, after he attended a November 3 election day event at the White House, CNN and the New York Times reported.Another advisor also tested positive, according to the newspaper, but was not identified nor was it stated if the person attended election night events at the president's residence.These new cases come in addition to recent coronavirus-positive results for Trump's chief of staff Mark Meadows, Housing and Urban Development Secretary Ben Carson and aide David Bossie, who was tapped to lead the president's legal.