Donald Trump and Kim Jong-un shake hands after signing documents during their summit in Singapore in June, 2018 (Photo: Jonathan Ernst/Reuters)

In an interview with NPR radio, Bolton said Trump wants to offer another opportunity for North Korea to realize the commitments it made during the Singapore summit in June.

Bolton said the US will consider loosening sanctions when North Korea has taken meaningful steps to dismantle its nuclear weapons program.

When asked whether or not it will be the last chance for North Korea, Bolton said everything will be decided after the next meeting and refused to forecast Trump’s next steps.