The signs of economic distress are finally showing up as global markets tumbled Tuesday with European stocks touching a two-year low while United States equity futures are deep in the red.

Stocks took a nosedive on investors fears of political antics such as the trade war and rising interest rates.

Before the U.S. market opens several major companies will report results, including Caterpillar (CAT), McDonald's (MCD), Lockheed Martin (LMT), United Technologies (UTX), 3M (MMM), Verizon (VZ), and Harley-Davidson (HOG). Results out of Caterpillar will be most closely watched with investors looking for any signs of inflation pressures, trade tensions, or a slowdown in economic growth out of the industrial giant, which is often seen as a bellwether for the global economy. –Yahoo Finance