U.S. president said he would be willing to discuss denuclearization with leaders of Russia and China WASHINGTON—President Trump said Monday that he would be open to meeting with the leaders of Russia and China to discuss denuclearization.Trump’s comments came after The Wall Street Journal reported that Russian President Vladimir Putin has proposed that he, Trump and Chinese leader Xi Jinping meet next month to talk about Ukraine in an attempt to negotiate an end to the four-year conflict that would favor Moscow.Trump told reporters that he would be willing to join such a trilateral meeting, “not so much for Ukraine,...