Key Takeaways The U.S. has imposed heavy tariffs on a multitude of trading partners around the world, dealing a heavy blow to the system of free trade built in the decades since WWII.The "Liberation Day" tariffs,

They could not have imagined a president would use emergency authority to bypass Congress and impose tariffs on the entire world.”

US Trade Representative Jamieson Greer was spending a second day testifying to Congress on what the Trump White House insisted was a trade “emergency” that needed unprecedented action. But he learned about his boss’ about-face during the hearing, in an episode that shattered his credibility in future trade talks.