Sr. Admin. Official tells me:
1- door is still open to talks if conditions change.
2- insult of Pence was proximate cause of cancellation.
3- however, concerns were growing prior to insult about distance apart on key issues. #NorthKoreanSummit

— Jim Sciutto (@jimsciutto) May 24, 2018

Insult of Pence! https://t.co/5eB1n0FAOB

— John Aravosis (@aravosis) May 24, 2018