President Donald Trump's U.N. ambassador called Monday for the U.N. and aid agencies to shift focus in how they support Syrians in need by boosting support for roads, schools and hospitals in neighboring countries that have been overwhelmed by millions of refugees. Speaking in Jordan, host to some 660,000 Syrian refugees, Nikki Haley argued that lack of coordination among aid agencies has led duplicated efforts and inefficiencies after seven years of civil war in the Arab country.

The decision to appoint a new envoy to the United Nations comes as nuclear talks between Iran and the United States and other major powers are coming under fire from U.S. congressional critics of Iran, who are pressing for the passage of new sanctions that the White House claims will torpedo the delicate negotiations.