 On July 3rd, 10 days before the event, Trump announced the Butler PA rally. On a potentially related note, according to UC Santa Barbara's First Lady calendar, Jill Biden announced on July 10th that she would also be holding an event on July 13th in nearby Pittsburgh. And I say potentially related because there are conflicting reports on this. Some are saying that resources were diverted away from Trump's detail and given to Trump or given to Jill.