"They have a lot of nuclear weapons, but not a lot of telephone service," Trump said on Friday. The President met with Kim three times during his first administration. While the summits led to a significant decrease in tensions on the Korean Peninsula, Trump failed to make a deal with Kim.

Since Trump returned to the White House, top North Korean officials have said that Kim is willing to meet the President again, but Washington must remove its demand that Pyongyang give up its nuclear weapons.

Secretary of State Marco Rubio has restated the long-standing policy in Washington that any deal with Pyongyang must include denuclearization. 

The Wall Street Journal spoke with current and former US officials who admitted that North Korea was unlikely to give up its nuclear weapons:

Recognizing North Korea as a nuclear state would be a dramatic shift in U.S. policy, which for decades has aimed to persuade Pyongyang to dismantle its arsenal with a mix of economic and diplomatic pressure.

Ending that stance would usher in a new era in U.S. relations with North Korea, one where the two countries engage as fellow nuclear powers instead of fierce adversaries.

Trump referred to North Korea as "sort of a nuclear power." He added, "I know how many weapons they have. I know everything about them. They have a lot of nuclear weapons."

And on Monday, the Washington Post reports:

So much so, Trump suggested aboard Air Force One on Monday, that he would extend his nearly week-long trip to make the meeting happen, if Kim agrees.

"It's our last stop, so it would be pretty easy to do," Trump told reporters on his way to Japan, when asked whether he would delay his return to Washington on Thursday if it meant meeting with the totalitarian state's leader.