Rodman is perhaps the only person in the world who has personal relationships with both the US President - he participated on Trump's pre-presidency reality TV show, "The Celebrity Apprentice" - and North Korean leader Kim Jong Un.
That is, of course, correct.
If, as Trump said on Tuesday he sensed, Kim wants the grand bargain of disarmament for economic integration, the personal endorsement from the two leaders on negotiations may be all that counts. Kim is widely believed to have ordered the execution of his own uncle and half-brother.
The one issue Mr Trump seemed to make clear was that US-South Korea joint military exercises would be suspended while negotiations were ongoing.
"The world will see a major change", he continued through a translator.
Bush forged a deal in 2005, North Korea promised to abandon all of its nuclear weapons programs and return to the Treaty on the Non-Proliferation of Nuclear Weapons. The former refers to dismantling North Korea's nuclear weapon capability, while the latter can include the eventual elimination of the USA nuclear umbrella on the Korean Peninsula. "Maybe in a year you'll be interviewing and I'll say I made a mistake".
Hours earlier as he sat alongside Kim at the signing ceremony, Trump said the two leaders "have developed a special bond" and that after their several hours of talks Tuesday and the signing of the agreement he thinks the US relationship with North Korea "will be very different than in the past".
Trump agreed to end joint U.S.
The optimistic summit was a remarkable change in dynamics from less than a year ago, when Trump was threatening "fire and fury" against Kim, who in turn labelled the President a "mentally deranged United States dotard".
Mr Trump said he urged Mr Kim and other North Korean officials to watch the four-minute video during the Singapore summit. "We're stopping joint exercises for a while to give Kim Jong Un some assurance that we're willing to meet him more than halfway", Graham said.
It was not immediately clear what specific progress, if any, had been made in preliminary discussions between United States and North Korean officials.
But the South Carolina Republican said Trump would face opposition to any move to withdraw American forces from South Korea.
All of this suggests that a wild-card president ― the last thing you want in the sensitive negotiation ― could have created serious problems, and not only for US negotiators, who will now have to iron out the details with North Korea.
The White House has not yet released the document, but the words were clearly visible in photographs taken when Trump displayed it to the gathered reporters.
That matters because North Korea has pledged to denuclearize the Korean Peninsula in virtually all agreements since 1992, but implementation has broken down due to a lack of consensus on what that means.
The president acknowledged that USA intelligence into the North Korean nuclear stockpile is limited, "probably less there than any other country", he said.
The formal document-signing, which also included an agreement to work to repatriate remains of prisoners of war and those missing in action from the Korean War, followed a series of meetings at a luxury Singapore resort. "At the end of the day, this is our last best chance to end this conflict without a war".