Wall Street's main indexes fell on Tuesday after U.S. President Donald Trump's latest plans for pharma tariffs renewed worries of the impact of a trade war, while some downbeat corporate results also weighed on investor sentiment.

Wall Street's main indexes fell on Monday after U.S. President Donald Trump rekindled worries about the fallout of a global trade war by introducing new tariffs, while focus remained on the Federal Reserve's monetary policy decision later this week.

Trump announced a 100% tariff on movies produced outside the U.S. but offered little clarity on how the levies would be implemented. Movie and television production companies that film overseas fell in premarket trading.

U.S. President Donald Trump will meet with Canadian Prime Minister Mark Carney Tuesday a week after Carney's Liberal Party succeeded in elections considered to be influenced by Trump's comments and ec