A lone gunman booked a suite at a Las Vegas hotel, took aim at a crowd below and committed one of the deadliest mass shootings in American history. At least 59 people are dead, and more than 500 wounded. President Trump is scheduled to visit the city on Wednesday. Today, Mr. Trump is heading to Puerto Rico to survey the damage from Hurricane Maria. A reporter for The Times discusses what she has seen on the island. Guests: Richard Pérez-Peña, a national reporter for The Times; Frances Robles, a Times correspondent based in Miami. For more information on today’s episode, visit nytimes.com/thedaily.