Trump Vietnam
US President Donald J. Trump looks on at the stairs of Air Force One before departing from Noi Bai international airport, in Hanoi, Vietnam 12 November 2017. Minh Hoang/REUTERS

President Donald Trump reignited a war of words with North Korea on Saturday calling its leader Kim Jong Un “short and fat.” But on Sunday, Trump held out hope for the two to be friends someday.

“That might be a strange thing to happen but it's a possibility,” said Trump at a news conference in Vietnam. “If it did happen it could be a good thing I can tell you for North Korea, but it could also be good for a lot of other places and be good for the rest the world. It could be something that could happen. I don't know if it will but it would be very, very nice.”

Trump is currently on a 12-day tour of Asia and spoke about North Korea in a speech to the South Korea’s National Assembly Wednesday.

In the speech, Trump painted a bleak picture of North Korea and warned it “do not try us.” But, in a departure from his speech at the United Nations, Trump did not call Kim “Rocket Man,” and did not threaten to destroy North Korea, instead, he offered an olive branch.

“We are ready to offer a path to a much better future,” said Trump, stipulating that North Korea had to get rid its nuclear program first.

North Korea didn’t comment on Trump’s trip until Saturday when it lashed out at the president in a commentary put out by state media.

“It is also nothing but a business trip by a warmonger to enrich the monopolies of the U.S. defense industry by milking the moneybags from its subordinate ‘allies,’” read the statement.

The statement also used the term dotard, which North Korea has called Trump in the past. Dotard is a term for an old person, especially a senile one.

Trump responded on Twitter Saturday.

“Why would Kim Jong-un insult me by calling me "old," when I would NEVER call him "short and fat?" Oh well, I try so hard to be his friend - and maybe someday that will happen!,” said Trump.