Late Thursday afternoon, Gov. Greg Abbott’s office found itself dealing with a traumatic and wholly unexpected situation. The governor, who was on vacation with his family in Jackson Hole, Wyo., was on his way to St. John’s Hospital. He had been accidentally scalded with hot water and had extensive second- and third-degree burns on both legs below the knees and both feet. Matt Hirsch, the governor’s communications director, began preparing a statement about the injury and how it might require the governor to curtail his schedule for the next couple of weeks, including, perhaps, skipping the Republican National Convention, which...