Trump threatens to escalate trade war with new round of tariffs up to 50%
1. Trump proposes tariffs between 15% and 50% ahead of Aug. 1 deadline. 2. Tariffs target nations without trade agreements with the U.S. 3. S&P 500 rose 0.22% amidst tariff announcements. 4. Negotiations for lower tariffs with the EU and Japan are ongoing. 5. Countries like Vietnam could face heavy export losses due to tariffs.