SALT LAKE CITY (AP) — Utah gubernatorial candidate Jon Huntsman Jr. is self-quarantining after a campaign staffer tested positive for COVID-19. The campaign said Friday that the former U.S.-Russia ambassador has postponed his in-person public events until he can be tested. His running mate Provo Mayor Michelle Kaufusi has not been in close contact with the staffer for a prolonged period and will continue with her public schedule while practicing social distancing. Senior campaign staff learned the staff member tested positive late Thursday night. Campaign leadership has closed their headquarters to be cleaned and alerted anyone who may have been exposed. The infected staff member has been working from home.