The tariff policies imposed by U.S. President Donald Trump on countries like Mexico, Canada, and China have significantly impacted the global economy. These tariffs were an integral part of Trump’s broader economic strategy and reflect historical patterns of protectionism in United States trade policy. Historically, the U.S. implemented strong protectionist measures from the 18th century through the late 19th century before shifting towards more open policies in the 20th century. However, under the Trump administration, there was a shift back towards protectionism with high tariffs on various imported goods.