Now playing
00:52
Clapper: I've long been an advocate for Rodman
PHOTO: Korean Central TV
Now playing
01:09
Watch Trump salute North Korean general
PHOTO: KCTV
Now playing
02:37
Kim Jong Un receives hero's welcome
PHOTO: ABC News
Now playing
01:01
Trump touts trust with Kim in TV interview
Now playing
00:53
Trump: N. Koreans in prison camps are 'winners'
North Korea leader Kim Jong Un (L) and US President Donald Trump shake hands after their meetings at the Capella resort on Sentosa Island in Singapore on June 12, 2018.
PHOTO: SUSAN WALSH/AFP/Getty Images
North Korea leader Kim Jong Un (L) and US President Donald Trump shake hands after their meetings at the Capella resort on Sentosa Island in Singapore on June 12, 2018.
Now playing
01:58
How significant was the Singapore Summit?
PHOTO: Kevin Lim/THE STRAITS TIMES
Now playing
02:11
Memorable moments from the Singapore summit
PHOTO: CNN Illustration/Getty Images
Now playing
02:58
Singapore summit: How did we get here?
PHOTO: CNN
Now playing
02:07
Trump talks denuclearization, sanctions and Kim Jong Un
PHOTO: Photo Illustration/CNN/Getty Images
Now playing
03:23
Trump and Kim Jong Un's ups and downs
Now playing
01:46
Trump shows Kim Jong Un presidential limousine
North Korea leader Kim Jong Un and U.S. President Donald Trump exchanged signed documents at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore.
PHOTO: Evan Vucci/AP
North Korea leader Kim Jong Un and U.S. President Donald Trump exchanged signed documents at the Capella resort on Sentosa Island Tuesday, June 12, 2018 in Singapore.
Now playing
01:36
What Trump learned about Kim Jong Un
Now playing
02:34
Trump, Kim Jong Un sign 'historic document'
PHOTO: Pool
Now playing
01:24
Watch Trump, Kim Jong Un speak before summit
PHOTO: Pool
Now playing
00:32
President Trump, Kim Jong Un meet in Singapore
PHOTO: POOL
Now playing
02:23
Trump to Kim: We will be successful
North Korea
PHOTO: ANTHONY WALLACE/AFP/Getty Images
North Korea's leader Kim Jong Un (L) shakes hands with US President Donald Trump (R) after taking part in a signing ceremony at the end of their historic US-North Korea summit, at the Capella Hotel on Sentosa island in Singapore on June 12, 2018.
Now playing
01:58
Amanpour: Trump can be a bully or a pussycat
PHOTO: CNN
Now playing
02:09
Rodman gets emotional discussing North Korea
(CNN) —  

Dennis Rodman, a retired professional basketball player, is one of the few people who knows both US President Donald Trump and North Korean leader Kim Jong Un, and that makes him an important resource, former Director of National Intelligence James Clapper said in a CNN interview.

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.”

Clapper responded: “I agree, Chris … as weird as it is … this whole thing is unconventional.”

Before an interview with Rodman on “Cuomo Prime Time,” Clapper said he had long thought Rodman was an important part of the process.

“I’ve long been an advocate of involving Dennis Rodman,” Clapper noted to Cuomo. “He is a unique person since he has a relationship with both Kim Jong Un and with Donald Trump. And obviously he has a great rapport with Kim Jong Un – who is a basketball fanatic himself. So, I think there’s a potential here to engage Dennis Rodman in a serious way in promoting this relationship”

During his interview, Rodman discussed his conversations with the North Korean regime leading up to the summit.

Clapper said afterward, “I saw a Dennis Rodman I’d never seen before in the course of that interview.”

“There’s a lot more depth there than I think meets the eye. And he does understand Kim Jong Un,” he added, noting that most other pundits “haven’t had that direct contact like he has.”

Trump is currently in Singapore for talks with his North Korean counterpart, which began with a handshake between the two men and then continued with a sit-down meeting.

Rodman also traveled to Singapore for the diplomatic talks, which his agent, Darren Prince, previously confirmed to CNN.

“He is willing to offer his support for his friends, President Trump and Marshal Kim Jong Un,” Prince said.

The talks are expected to continue later into a larger meeting with White House advisers, the White House said.

“I feel really great. We’ll have a great discussion,” Trump said at the beginning of the meeting.

“This will be tremendously successful,” he continued. “We will have a terrific relationship”

Rodman, a former contestant on Trump’s reality show on NBC, “Celebrity Apprentice,” has also previously visited North Korea.

CNN’s Veronica Stracqualursi and Kevin Liptak contributed to this report.