Trump administration officials characterize it as a cost-saving measure, but the move could indicate something more.
There are indications though that in some respects the meeting may not quite match that description.
In April, Trump said the worldwide body was an "underperformer, but has tremendous potential".
Standing before a B-2 stealth bomber and a vast USA flag, Donald Trump on Friday lashed out at North Korea warned that advanced U.S. weaponry could make the souls of America´s enemies "crumble". And he wants to slash US financial contributions to the U.N. Richard Gowan is a U.N. expert with the European Council on Foreign Relations. And he comes out with USA being very strong in the end.
Another factor is Trump's famous unpredictability.
The increasing levels of sanctions will cut off 90 percent of North Korea's trade.
Will the president take to Twitter to savage the United Nations if he feels insufficient progress is being made, breaking with the carefully crafted talking points created by advisers and diplomats?
BENNETT: The president will address some of those issues on Tuesday, when he takes the podium at the U.N.to address world leaders.
"The U.N. has shifted over the past several months".
Also on the agenda: the Iran nuclear deal, Mideast peace, and United Nations reform efforts.
HALEY: With North Korea being front and center - Iran will be an issue.
Trump will meet with the leaders of France and Israel on Monday before holding a dinner with Latin American leaders that evening, Trump's national security adviser H.R. McMaster told reporters.
After addressing the General Assembly Tuesday morning, Trump will meet with senior United Nations officials and the Emir of Qatar, a key regional ally which he has accused of backing terrorism in recent months.
US President Donald Trump has scheduled talks with leaders of Japan and South Korea to address the crisis.