I just thought the link below really said everything. Trade is one area which Trump has nearly complete control. Except every time he slaps on a tariff against a country, they retaliate with tariffs on the US. It is a “lose-lose” policy as the tariffs are passed through to the consumer. Nothing positive ever seems to emerge from Trump’s actions. He has threaten Brazil and Argentina with tariffs, because their currencies are weak. A lot of this is not particularly rational.
Trump was handed a reasonable and rational approach to China’s violation of trade agreements. It was called the Trans-Pacific Partnership Agreement. But, it unified our Asian, Canadian and South American trading partners to force compliance of fair trade with China. But it was long and complex, It was also negotiated by President Obama. So, the US withdrew from the agreement.
Withdrawing from international agreements, and going it alone, may look like it’s putting US interest first. Actually, it puts us last. We’ve lost our leadership role in the UN, NATO and the Paris Accords on Climate Change. Because Trump wants all the glory, all he can do is eliminate regulations and agreements. And disrupt free trade with tariffs.