Trump grappling with risks of proceeding with North Korea meeting

President Trump, increasingly concerned that his summit meeting in Singapore next month with North Korea’s leader could turn into a political embarrassment, has begun pressing his aides and allies about whether he should take the risk of proceeding with a historic meeting that he had leapt into accepting, according to administration and foreign officials.

Mr. Trump was both surprised and angered by a statement issued on Wednesday by the North’s chief nuclear negotiator, who declared that the country would never trade away its nuclear weapons capability in exchange for economic aid, administration officials said. The statement, while a highly familiar tactic by the North, represented a jarring shift in tone after weeks of conciliatory gestures.

On Thursday and Friday, Mr. Trump peppered aides with questions about the wisdom of proceeding, and on Saturday night he called President Moon Jae-in of South Korea to ask why the North’s public statement seemed to contradict the private assurances that Mr. Moon had conveyed after he met Kim Jong-un, the 35-year-old dictator of the North, at the Demilitarized Zone in late April.

The president’s conversation with Mr. Moon, which was first reported by The Washington Post, came just three days before the South Korean leader was scheduled to arrive in Washington to meet with Mr. Trump on Tuesday. It was a sign of Mr. Trump’s discomfort, some officials speculated, that he could not wait to discuss the issue until Mr. Moon arrived for his meetings here, though there is no indication that the president is considering pulling out of the North Korea talks.