With N. Korea summit on shaky ground, Trump to press S. Korean leader

Three weeks before an unprecedented US-North Korea summit is supposed to take place, President Donald Trump will meet South Korean President Moon Jae-in on Tuesday as US officials try to figure out whether Pyongyang is serious about negotiating a deal on denuclearization.

Moon's White House visit was originally arranged as a meeting to fine-tune a joint strategy for dealing with North Korean leader Kim Jong Un but has instead become more of a crisis session after Pyongyang last week threatened to pull out of the planned June 12 summit in Singapore.

Moon's government led efforts to resume dialogue with North Korea and gave enthusiastic accounts of its encounters with Kim, spurring Trump to accept an offer of a first-ever meeting between US and North Korean presidents.