North Korea summit: Donald Trump says "maybe it will happen later"

President Trump suggested Tuesday that the June 12 date for his historic summit with North Korea's leader could slide back on the calendar, saying, "If it doesn't happen, maybe it will happen later. You never know about deals," he said as he met with his South Korean counterpart in the Oval Office. "I’ve made a lot of deals. You never really know.” Even as the United States and South Korea insisted that they haven't given up on peace talks, there were hints that the overture may be built on slippery foundations.