Trump, Xi hold first summit with N. Korea at the fore

Donald Trump and Xi Jinping meet face-to-face for the first time Thursday, opening a new chapter in the world's most consequential relationship amid growing crises over North Korea and trade.The presidents of the world's two pre-eminent economic and military powers will rendezvous in the south Florida sun at Trump's Mar-a-Lago estate for a summit already clouded by geopolitical storms.North Korea's provocative missile launch Wednesday -- barely 48 hours before the summit starts --will only accen