Trump, asked last week if Rodman had been invited to Singapore, said, "No, he wasn't".
Rodman described Kim as a "big kid" who wants to see the world and he expressed hope that the two leaders will make progress.
"Obama didn't give me the time of day", Rodman said.
"(Kim) is trying to change his people and his culture for a little bit, and I think Donald Trump did a great job at keeping his composure and understand that Kim Jong Un wants to have trust in America", Rodman told reporters on Tuesday. "I don't want to worry about the war stuff, I don't know anything about that", he said. "I'm thanking Jeanie Bus", Rodman told Cuomo, adding, "I'm thanking Eddie Vedder, the Pearl Jam [sic], everybody that's supported me through all these things".
He is one of the few westerners to have met the North Korean leader on visits to the capital city Pyongyang. "He wants to come to America and enjoy his life".
CNN's Chris Cuomo noted about Rodman on Monday night, "He is our best resource at this point right now for understanding the minds of the two men, especially Kim Jong Un". "I will go back to North Korea, I'm not anxious about that", he told The Post. "Why do I feel like I just ran a marathon backwards?" another fan said.
"It's a great day". They do also seem to have a side project, which uses Rodman to promote peace, love and unity.
Trump landed in Singapore a little after 8:30 p.m. local time for the highly-anticipated meeting with the North Korean leader, which is set to take place on Tuesday.
"I think that country is normally hearing people who are always lying, deceitful and not trustworthy. We just need the doors to be opened so we can start fresh", he said. Kim is due to depart Singapore on Tuesday afternoon, a source told Reuters.