Speaking on the eve of the historic summit between US President Donald Trump and Kim Jong-un, he said that preparatory talks between officials on both sides to narrow differences were advancing more quickly than expected.
He wouldn't say whether Trump would consider withdrawing USA troops from the Korean Peninsula, but insisted US sanctions on the North would remain in place until the North denuclearizes.
US Secretary of State Mike Pompeo, who is also in Singapore, said in a tweet that Washington is "committed to the complete, verifiable, irreversible denuclearisation of the Korean peninsula".
Asked Saturday what the benchmark of success is for the summit, he said, "At a minimum, I do believe, at least we'll have met each other".
TRT World spoke to Mark Shanahan, a lecturer in politics and worldwide relations at Reading University in England, for more.
Trump's own White House, in fact, has already laid out the ways in which Kim broke various promises along the way to the summit.
Image copyright Handout Image caption North Korean citizens were not told why Mr Kim travelled on an Air China jet What is North Korea saying?
It will be Trump's second unexpected early departure from a summit in just a few days. He left early, and as he flew to Singapore, he tweeted that he was yanking the US out of the traditional group statement.
As he was trying to build a bridge with Kim, he was smashing longtime alliances with Western allies with his abrasive performance at the G-7. China and South Korea would have to sign off on any legal treaty. That day, he and the president ended up meeting for over an hour. Trump later accused the New York Times of quoting a senior White House official "who doesn't exist". They'll be joined later by their staffs for an expanded meeting and a working lunch. The official was not authorized to speak publicly about internal deliberations and insisted on anonymity.
"And I don't think either interpreter will be in a position to correct the record if the self-reporting by Kim and Trump doesn't reflect what was actually said in the same manner and tone", said Jenny Town, assistant director of the U.S. -Korea Institute at Johns Hopkins University.
Famed North Korean news anchor Ri Chun Hee informed the nation that Kim had landed, declaring that the summit was a "historical first" that is "garnering the attention and hopes of the entire world". Kim finished off the night with a walk along a pedestrian bridge near the city's Merlion Park.
"Wide-ranging and profound views on the issue of establishing new DPRK-US relations, the issue of building a permanent and durable peace-keeping mechanism on the Korean Peninsula, the issue of actualizing the denuclearization of the Korean peninsula and other issues of mutual concern" will be discussed, state-run KCNA reported early Monday. "We've got very interesting meeting in particular tomorrow, and I just think it's going to work out very nicely".
Gorka also said that he was "very disappointed" in Canadian Prime Minister Justin Trudeau following his remarks after the G7 Summit over the weekend.