Economists caution new tariffs could pose economic risks, but the White House says growth is rebounding amid low inflation.

President Donald Trump began imposing higher import taxes on dozens of countries Thursday just as the economic fallout of his monthslong tariff threats has begun to cause visible damage to the U.S. economy.

Full agreements have yet to be reached with the U.S.’s three largest trading partners, Canada, China and Mexico; some Canadian imports have been subject to a 35 percent tariff since early August.