President Donald Trump has been sending letters to countries outlining higher tariffs they’ll face if they don’t make trade deals with the U.S. by Aug. 1. The letters were posted on Truth Social. Trump warned countries that they would face even higher tariffs if they retaliated by increasing their own import taxes. Brazil is facing a 50% tariff and Canada 35% if they don't reach deals. Mexico and the European Union are both facing 30% tariffs.