 WASHINGTON AP Hours after an astonishing summit with North Korean dictator Kim Jong Un, President Donald Trump boldly declared a breakthrough. There is no longer a Nuclear Threat from North Korea, he tweeted. Yet two years later, despite two more face-to-face meetings and many exchanges of warm words between the leaders, North Korea continues to build up its nuclear program and test missiles. And even if Trump still hopes for an agreement, his administration isnt betting on it happening before the November election. The last significant contact between the two sides was outside of Stockholm last October. North Korea declared the dialogue a failure in a statement written before talks even began, administration officials say. Communication has been limited to the lower-level New York channel at the United Nations. North Koreas recent belligerence against South Korea has only stoked more tension. The North has lashed out at South Korea for not breaking from Washington to restart inter-Korean economic projects that have been held back by U.S.-led sanctions. Pyongyang blew up a multistory liaison office in the border town of Kaesong, a place where the North and South could talk and improve relations. The North also threatened military retaliation against the South, but then backed off. Trump administration officials are hard pressed to find signals of interest from Pyongyang in resuming talks. But they are anticipating the possibility of an October surprise before the Nov. 3 election. They arent sure if this would be an olive branch from Kim to resume talks or fireworks in the form of an atomic test or missile launch. The officials spoke on condition of anonymity to discuss the administrations thinking on a sensitive diplomatic matter. The officials note, however, that despite the... 