The U.S. president used the World Economic Forum to offer the global elite a warning: He intends to follow through on his “America First” campaign promises.

By Echo Wang, Marwa Rashad and Trevor Hunnicutt DAVOS, Switzerland (Reuters) -U.S. President Donald Trump demanded OPEC lower oil prices and the world drop interest rates in a speech to global business and political leaders and warned them they will face tariffs if they make their products anywhere but the U.