Stock investors are starting to tune out President Donald Trump’s trade war. After frantically pushing share prices higher and lower for weeks on each twist and turn in Trump’s tariff negotiations, investors are now largely ignoring new announcements.

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

Stocks dropped on Friday on renewed fears of an escalating trade war after Donald Trump threatened Apple and the EU with tariffs.