Americans say, 61 percent to 21 percent, that they approve of Trump having met with Kim.
After Trump and North Korean leader Kim Jong Un walk down a colonnade to shake hands, the pair walk together into a room with various members of Kim's delegation, the video shows. Trump called the training, "provocative".
The president had previously mocked Chairman Kim during public appearances and regularly referred to him as "little rocket man" and said he was on a "suicide mission". North Korea reaffirmed previous promises to work towards the "complete denuclearisation of the Korean peninsula". He added that the response was "almost immediate".
"Make no mistake, we are going to maintain the readiness of our forces in South Korea", said one United States official, speaking on condition of anonymity.
President Trump seemed to agree, saying Tuesday that Kim would begin "de-nuking" North Korea "very quickly".
"The world should rest assured the United States, Republic of Korea and Japan remain committed to achieve complete, verifiable and irreversible denuclearization of North Korea", he said.
Regarding the joint exercises, Kang only said at the press conference, "This is an issue that involves the [South] Korea-U.S. alliance".
In further explaining his reasons for suspending major exercises, Trump said they "cost a fortune", though even the Pentagon, which foots the bill for USA participation in all such manoeuvrs, has been unable to say what they cost.
Then, during his State of the Union address last January, he said "no regime has oppressed its own citizens more totally or brutally than the cruel dictatorship in North Korea". If North Korea gave up its missiles, and the dismantling could be verified, "there would be no need for it".
In Wormuth's view, Trump's stated concern about the cost of such exercises, combined with his talk of eventually bringing all US troops home from South Korea, is likely to create doubt in Seoul and Tokyo about American steadfastness.
"It is North Korea - through its nuclear and missile programs, aggressive behavior, and egregious human rights violations - that poses the greatest threat to peace". He also said Japan wanted US troops to remain in South Korea. I saw one estimate that, when you factor in all the things that we use to deter North Korea or to prepare for fighting North Korea, it might be $40 billion a year. Thirty-five percent say the North Koreans got most or all of what they wanted, and 32 percent say they got only some or nothing.
The criticism directed at Trump mirrors the anger former President Barack Obama received early in his presidency when he bowed to two foreign leaders.
Observers expect a visit by a North Korean official to Beijing soon, as the traditional allies will want to consult going forward.