President Donald Trump announced that both he and the first lady had tested positive for COVID-19 just before 1 a.m. on Friday, Oct. 2. During a news conference the next day, however, White House Physician Dr. Sean Conley said that Trump had tested positive “72 hours ago,” which would have placed the positive test on Sept. 30 — 36 hours before the public was informed. The White House has yet to disclose when Trump last tested negative for COVID-19, drawing speculation from politicians, contact tracers and journalists about when and how the president contracted the virus.