Kimberly Guilfoyle, the girlfriend of President Trump’s eldest son and a top fund-raising official for the Trump re-election campaign, tested positive for the coronavirus on Friday before a Fourth of July event at Mount Rushmore, a person familiar with her condition said.
Ms. Guilfoyle traveled to South Dakota with Mr. Trump’s son Donald Trump Jr., in anticipation of attending a huge fireworks display where the president was set to speak. They did not travel aboard Air Force One, according to the person familiar with her condition, and she was the only person in the group who tested positive.