Kim Guilfoyle, campaign official and girlfriend of Trump Jr., tests positive for coronavirus in South Dakota

Kim Guilfoyle, the girlfriend of Donald Trump Jr. and a top Trump campaign official, tested positive for coronavirus ahead of the president's speech in South Dakota on Friday, POLITICO confirmed.

Guilfoyle, who traveled to Mount Rushmore to attend President Donald Trump's July 4 kickoff address, was not in contact with the president and did not travel on Air Force One. The New York Times first reported Guilfoyle had tested positive.

Sergio Gor, chief of staff for the Trump Victory Finance Committee, said in a statement: "After testing positive, Kimberly was immediately isolated to limit any exposure. She's doing well, and will be retested to ensure the diagnosis is correct since she's asymptomatic, but as a precaution will cancel all upcoming events. Donald Trump Jr was tested negative, but as a precaution is also self isolating and is canceling all public events."