Canada has imposed $20 billion in retaliatory tariffs on the US, while record-high diesel prices strain farmers in Kansas. The Republican National Convention opens in Dallas with President Trump as the headliner. Meanwhile, Houthi attacks have wounded over 70 people in Saudi Arabia, and the UK announced a ban on trade with Israeli settlements. The episode also notes a record-breaking summer box office season and the theft of two Renoir paintings from a French museum.