More than 160 people are still unaccounted for after deadly flash flooding in Texas and there are now new questions about warning systems in the area. Then, Trump says there will be ‘no extensions’ on his new August 1st tariff deadline. Plus, the President announces that the U.S. will send more weapons to Ukraine -- reversing a recent decision to pause military aid. Jeff Mason, Leigh Ann Caldwell, Jon Allen, Brooke Masters, Ron Insana, Eleanor Klibanoff, and Reed Galen join The 11th Hour