The race to search for survivors following deadly flash flooding in Central Texas. Then, President Trump threatens new tariff rates, some of which target key American allies like Japan and South Korea. Plus, the Trump-Musk feud ramps up again after Elon Musk announces plan to launch his own political party. Susan Glasser, Akayla Gardner, Justin Wolfers, Max Chafkin, Mark McKinnon, Louis Amestoy, and Melinda & Melvin Harris join The 11th Hour