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.

US President Donald Trump said he would ask Saudi Arabia and other OPEC nations to “bring down the cost of oil,” casting the push for more crude output as a way to heighten pressure on Russia and help end the nearly three-year war in Ukraine.