The president says he wants Opec and Saudi Arabia to bring down the price of oil which he says is fuelling the Russia-Ukraine war.

On January 23, the Saudi State news agency said the kingdom wants to put $600 billion into expanded investment and trade with the US over the next four years

U.S. President Donald Trump on Thursday proved that words can be just as powerful as actions — at least temporarily — after his promise to ask the Saudis and OPEC to lower the cost of oil led to a downturn in crude prices.