President Donald Trump said Saturday he believes the Russia-Ukraine war would end if all NATO countries stopped buying oil from Russia and placed tariffs on China of 50% to 100% for its purchases of Russian petroleum. Trump posted on his social media site that NATO’S commitment to winning the war "has been far less than 100%" and the purchase of Russian oil by some members of the alliance is “shocking.” As if speaking with NATO members, he said: “It greatly weakens your negotiating position, and bargaining power, over Russia.”