Trump's renewed firmness on that deadline came after he posted a flurry of letters warning world leaders, threatening to impose tariffs similar to those he announced in April. On

Trump's moves have raised fears that economic growth would slow to a trickle, if not make the U.S. and other nations more vulnerable to a recession.

A day later, Trump said the U.S. will impose 50% tariffs on copper, as well as 200% tariffs on pharmaceuticals.Trade deals could be coming. Japan’s top trade negotiator, for example, said July 8 that talks with the U.

Trump delayed the "reciprocal tariffs" in April, vowing to strike roughly 90 trade deals in 90 days. So far, the White House says it has reached trade agreements with only the United Kingdom and Vietnam, as well as a preliminary accord with China.

President Donald Trump has sent letters to 14 countries outlining higher tariffs they’ll face if they don’t make trade deals with the U.S. by Aug. 1.