If there is one issue that defines President Trump more than any other, it’s trade. Since the 1980s, Trump has been critical of trade deals that seem to favor other countries. Since his 2016 election campaign, the president has regularly tweeted his views that “the US has been ripped off by other countries for years,” and that with the US facing a massive trade deficit — totaling $800 billion in 2017 — trade wars are “easy to win.”