The girlfriend of President Donald Trump's eldest son has tested positive for coronavirus, US media reported Friday. Kimberly Guilfoyle, a former Fox News television personality who is dating Donald Trump Jr, had traveled to South Dakota to see the US president’s Fourth of July speech and celebration fireworks at Mount Rushmore. In a statement to the newspaper, Sergio Gor, chief of staff to the Trump campaign's finance committee, said: "She's doing well, and will be retested to ensure the diagnosis is correct since she's asymptomatic."