A spokesperson for the president of the U.N. General Assembly says the USA role in the compact process is critical and that migration's a global issue that needs global response.
The American pullout from the pact is scheduled for the end of 2018, AFP reported.
'No country has done more than the United States, and our generosity will continue, ' said Haley, whose parents are immigrants from India.
UN General Assembly President Miroslav Lajcak on Sunday expressed regret over a US decision to withdraw from the global migration compact, a UN-led process toward safe, orderly and regular migration. "We will decide how best to control our borders and who will be allowed to enter our country", Haley said.
The United States has walked away from a United Nations effort to ease the global migration and refugee crisis, with the Trump administration saying it was no longer compatible with USA principles or priorities on the issue.
The UN General Assembly president expressed regret at the United States decision, saying no one nation can manage worldwide migration alone.
The UN states that the nonbinding New York Declaration "expresses the political will of world leaders to save lives, protect rights, and share responsibility on a global scale". "As such, it has the experience and expertise to help ensure that this process leads to a successful outcome".
The US has been a part of the New York Declaration for Refugees and Migrants since it was formed a year ago.
Under Trump, the US has taken hard line on immigration.
The Trump administration has pledged that one of their top agenda items is to strengthen the nation's borders and crack down on illegal immigration.
Foreign Policy magazine said the president's decision to pull out of the negotiations "highlighted the enduring influence of Stephen Miller, the 32-year-old senior White House policy advisor who has championed the Trump administration's efforts to sharply restrict immigration" to the U.S.
"The writing on the wall is that agreements made with the United States are not worth the paper on which they are written, because the current American president can - anytime, without due cause - call them into question without offering a realistic alternative", USA correspondent Carsten von Nahmen said in an October op-ed for German public broadcaster Deutsche Welle, reacting to Trump's stance on the Iran deal.