U.S. markets plunged in the wake of President Trump's announcement of new tariffs. Many stocks had their worst single day since the start of the pandemic in 2020. Leaders around the world denounced the tariffs and experts warned the president's action could risk more inflation,

The Office of the United States Trade Representative released a report highlighting foreign trade barriers that could influence tariffs the president puts into effect this week.

Imposition of new tariffs on nearly every country adds to concerns in Europe and Asia about relying on America.