North Korea's leader Kim Jong Un (L) is welcomed by Singapore's Prime Minister Lee Hsien Loong (R) during his visit to The Istana, the official residence of the prime minister, following Kim's arrival in Singapore on June 10, 2018. - Kim Jong Un and Donald Trump will meet on June 12 for an unprecedented summit in an attempt to address the last festering legacy of the Cold War, with the US president calling it a "one time shot" at peace. (Photo by ROSLAN RAHMAN / AFP)        (Photo credit should read ROSLAN RAHMAN/AFP/Getty Images)
Watch Kim Jong Un arrive in Singapore
North Korean leader Kim Jong Un arrives in Singapore ahead of the summit with President Donald Trump and meets with Singapore's Prime Minister Lee Hsien Loong.
2:32 • Source: CNN
US-North Korea summit 18 videos
North Korea's leader Kim Jong Un (L) is welcomed by Singapore's Prime Minister Lee Hsien Loong (R) during his visit to The Istana, the official residence of the prime minister, following Kim's arrival in Singapore on June 10, 2018. - Kim Jong Un and Donald Trump will meet on June 12 for an unprecedented summit in an attempt to address the last festering legacy of the Cold War, with the US president calling it a "one time shot" at peace. (Photo by ROSLAN RAHMAN / AFP)        (Photo credit should read ROSLAN RAHMAN/AFP/Getty Images)
Watch Kim Jong Un arrive in Singapore
2:32
Now playing
• Source: CNN
01 trump NK salute
Watch Trump salute North Korean general
1:09
Now playing
• Source: CNN
05 kim north korea flowers airport
Kim Jong Un receives hero's welcome
2:37
Now playing
• Source: CNN
Trump North Korea Summit GMA Interview
Trump touts trust with Kim in TV interview
1:01
Now playing
• Source: CNN
trump presser singapore screengrab 02
Trump: N. Koreans in prison camps are 'winners'
0:53
Now playing
• Source: CNN
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.
How significant was the Singapore Summit?
1:58
Now playing
• Source: CNN
12 kim trump summit
Memorable moments from the Singapore summit
2:11
Now playing
• Source: CNN
20180607 trump kim jong un singapore flag
Singapore summit: How did we get here
2:58
Now playing
• Source: CNN
trump north korea presser 2
Trump talks denuclearization, sanctions and Kim Jong Un
2:07
Now playing
• Source: CNN
0414 kim jong un trump composite
Trump and Kim Jong Un's ups and downs
3:23
Now playing
• Source: CNN
trump kim presidential limo
Trump shows Kim Jong Un presidential limousine
1:46
Now playing
• Source: CNN
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.
What Trump learned about Kim Jong Un
1:36
Now playing
• Source: CNN
trump kim signing event handshake
Trump, Kim Jong Un sign 'historic document'
2:34
Now playing
• Source: CNN
04 trump kim meeting 511 SCREENGRAB
Watch Trump, Kim Jong Un speak before summit
1:24
Now playing
• Source: CNN
02 trump kim handshake 0611 SCREENGRAB
President Trump, Kim Jong Un meet in Singapore
0:32
Now playing
• Source: CNN
05 trump kim meeting SCREENGRAB
Trump to Kim: We will be successful
2:23
Now playing
• Source: CNN
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.
Amanpour: Trump can be a bully or a pussycat
1:58
Now playing
• Source: CNN
rodman cry cuomo kim jong un trump summit
Rodman gets emotional discussing North Korea
2:09
Now playing
• Source: CNN