Donald Trump backs down again on tariffs. Also, a toy company appeals to the Supreme Court over Trump tariffs. And Texas floods kill at least 104 people. Sen. Sheldon Whitehouse, Rick Woldenberg, and Tom Llamas join Lawrence O'Donnell.

Donald Trump threatens John Brennan and James Comey with Justice Department investigations. Also, the Trump tariff policy is headed to a federal appeals court. And cuts to hurricane data will leave forecasters in the dark. Rep. Eric Swalwell, Lisa Rubin, and Michael Lowry join Lawrence O'Donnell.