(CNBC) -- Kimberly Guilfoyle, a senior Trump campaign official and Donald Trump Jr.’s girlfriend, tested positive for coronavirus while in South Dakota on Friday, according to a person familiar with the situation.
Trump Jr., the eldest son of President Donald Trump, tested negative, the person said.
Neither Trump Jr. nor Guilfoyle traveled with the president on Air Force One as the president went to Mount Rushmore for a July 4th weekend celebration, the person said.