Matthew Pottinger, the top Asia expert on Trump's National Security Council, told the BBC, "President Trump offered Kim a lift home on Air Force One. The president knew that Kim had arrived on a multi-day train ride through China into Hanoi and the president said: 'I can get you home in two hours if you want.' Kim declined."
The stunning offer made to a brutal dictator came as Trump ended the Hanoi summit with no joint agreement, after Kim insisted all US sanctions on his country be lifted. That was a bridge too far for Trump, who said at the time that Kim had offered to take some steps toward dismantling his nuclear arsenal but not enough to warrant ending the debilitating sanctions regime on the country.