Kim Jong Un
But Donald Trump has insisted Kim Jong Un "signed a contract" so everything will be OK.
The propaganda stunt came days after nuclear negotiations between North Korea and the US fell apart.
Officials tried to block the press after historic meeting.
Trump's visit to the North is the first by a sitting US president.
An interesting approach to diplomacy.
Talks between the US president and Kim Jong Un abruptly collapsed in Hanoi earlier this year.
The de-nuclearisation of the Korean peninsula was top of the agenda at the first meeting between North Korea and Russia since 2011. Vladimir Putin highlighted that both Russia and the US want North Korea to abandon its nuclear weapons, while Kim Jong Un asked for security guarantees in order to do so. The leaders also discussed sanctions, which are currently affecting both countries.
The bromance might not last much longer.
President Donald Trump and North Korean leader Kim Jong Un ended their second summit early after they could not agree to terms for denuclearisation. Trump said in a press conference that North Korea wanted an end to all sanctions, something the US was not willing to do. Trump said he “walked” from the negotiation but is hopeful the two countries will progress towards meaningful change.
But it was a "friendly walk" away, the president said.