Trump earlier had a working lunch with Singapore Prime Minister Lee Hsien Loong at the presidential palace Istana after their bilateral meeting during which the two leaders discussed everything from the summit preparations to the US' tariff threats.
The meeting comes on the eve of a historic summit between Trump and North Korean dictator Kim Jong-un.
The summit will be the first meeting between Trump and Kim and mark a turnaround of relations between the two leaders after a long-running exchange of furious threats and insults.
The two leaders have had an extraordinary up-and-down relationship over the past 18 months.
Some 2,500 journalists are reporting on the event, which is costing Singapore government about SGD 20 million.
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