1. Trump proposes lowering tariffs on China from 145% to 80%. 2. AAPL and other major companies could face cost spikes without a trade deal. 3. Negotiations in Switzerland may lead to a significant tariff reduction next week. 4. China's exports to the U.S. fell 21% in April amid rising tariffs. 5. Potential new tariffs of 50%-54% discussed could influence market reactions.