Stocks are falling again on Wall Street as companies and investors react to President Donald Trump's decision to impose tariffs on the U.S.'s biggest trading partners. The S&P 500 dropped

Mexican President Claudia Sheinbaum says she hopes to speak with U.S. President Donald Trump now that he has announced plans to impose tariffs on Mexico and Canada starting Tuesday.

China on Friday vowed to take "all necessary countermeasures" after US President Donald Trump said he would impose an additional 10 percent tariff on Chinese imports.

President Donald Trump on Thursday signed executive actions that delay for nearly one month tariffs on all products from Mexico and Canada that are covered by the USMCA free trade treaty, a significant walkback of the administration’s signature economic plan that has rattled markets,

Starting just past midnight Tuesday, imports from Canada and Mexico are now taxed at 25%, with Canadian energy products getting tariffed at 10%.

In another reversal, Trump postponed for a month new tariffs on imports from Canada and Mexico that fall under the three nations' free trade deal.

Plus: President Trump's sweeping freeze on federal funding has been hit with another legal blow. | A deadline looms to avoid a government shutdown.

President Trump suspended tariffs for both countries after Mexico’s leader presented her security successes, and after U.S. markets fell and business leaders urged the White House to change course.

President Trump said he wanted to “help” Mexico and Canada with his delay of some tariffs against Canada and Mexico until early next month.