This week, Jacksonville, Florida—where Trump moved the Republican National Convention so he could hold a 15,000-person rally next month—mandated that people wear masks indoors to slow the explosion of COVID-19 cases. According to a Republican working on the convention, the campaign is now preparing to cancel the event so that Trump doesn’t suffer another Tulsa–like humiliation. “They probably won’t have it,” the source said. “It’s not going to be the soft landing Trump wanted.”