President Xi stressed to President Trump that the Taiwan question is the most important issue in China-U.S. relations. If it is handled properly, the bilateral relationship will enjoy overall stability. Otherwise, the two countries will have clashes and even conflicts, putting the entire relationship in great jeopardy. “Taiwan independence” and cross-Strait peace are as irreconcilable as fire and water. Safeguarding peace and stability across the Taiwan Strait is the biggest common denominator between China and the U.S.