President Donald Trump is threatening a 50% tax on all imports from the European Union as well as a 25% tariff on Apple products unless iPhones are made in America.

Now they have a trade war problem to worry about again. Stock futures fell sharply Friday after President Donald Trump brought the trade war back to the forefront with threats of massive tariffs against America’s most valuable company and one of its most important trading partners.

U.S. President Donald Trump's tariff decisions since he took office on January 20 have shocked financial markets and sent a wave of uncertainty through the global economy. Here is a timeline of the major developments: February 1 - Trump imposes 25% tariffs on Mexican and most Canadian imports and 10% on goods from China,