 VP nominee J.D. Vance is one of the fiercest opponents of U.S. aid for Ukraine in the Senate. President Biden also working to tamp down political rhetoric. He'll be campaigning in Nevada today. As many as 30 people were killed in Gaza in the latest Israeli strike on a U.N. school-turned-shelter. Israel's military claiming Hamas is setting up operations out of U.N. facilities. This is ABC News.