This week on Face the Nation, extreme heat continues to smash records around the world and tactics being taken by Texas officials at the border to deter migrants comes under scrutiny. As July slogs on, so do the miserable temperatures and brutal severe weather episodes that are dominating the summer of '23. There's no denying it's hot or that the high temperatures are raising concerns about the future of the planet, but what can be done at this point? We'll talk to Phoenix Mayor Kate Gallego. Her city is one of the hottest spots in the country. Then, the Justice Department orders the removal of floating barriers in the Rio Grande after reports of injuries to migrants trying to enter the U.S. We'll ask Texas Republican Congressman Tony Gonzales about some of the measures being used and his new immigration proposal. Plus, the culture wars on the campaign trail intensify as Vice President Kamala Harris blasts new Florida guidelines for teaching Black history in schools. We'll talk to former New Jersey Governor and Republican candidate Chris Christie about that and a possible third indictment facing former President Trump. Finally, the facts surrounding gender-affirming care with the head of the organization that sets the guidelines for treatment, Dr. Marci Bowers. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.