 The world was safer, and it felt like the next generation would have a chance at the American dream. After the assassination attempt, Mr. Trump called for the convention to be about unity. Tonight, delegates heard from former challengers for the 2024 nomination, including Nikki Haley. For the sake of our nation, we have to go with Donald Trump. Tomorrow night, delegates hear from vice presidential nominee J.D. Vance. This is ABC News.