In 2017, U.S. President Donald Trump enacted tight restrictions on Venezuela’s ability to access financial markets; two years later, the U.S. government blacklisted Venezuela’s Central Bank and put a general embargo against the Venezuelan state institutions. If any firm trades with Venezuela’s public sector, it could face secondary sanctions. The U.S. Congress passed the Countering America’s Adversaries Through Sanctions Act (CAATSA) in 2017, which tightened sanctions against Iran, Russia, and North Korea. The next year, Trump imposed a raft of new sanctions against Iran which suffocated Iran’s economy. Once more, access to the world banking system and threats to companies that traded with Iran made it almost impossible for Iran to do business with the world.