Secretary of State Mike Pompeo reportedly wanted Harris in this new role.
Ambassador Nikki Haley said the sanctions are meant to show Russia and Syria's other allies that "we mean business."
President Donald Trump threatened Syria and Russia with "smart" missiles in an early morning tweet Wednesday.
China's ambassador to the U.S. says his country won't hesitate to strike back if the U.S. slaps more tariffs on Chinese imports.
Russian state-owned media quoted its government as saying, "The consequences will be very serious" if the U.S. launches a strike on Syria.
The U.S. Ambassador to the United Nations said Monday the U.N. ceasefire in Syria's Eastern Ghouta has failed, but the U.S. has drafted a new one.
Russia, a strong ally of Syrian President Bashar al-Assad, vowed to veto the measure.
The U.S. ambassador to Britain told the BBC he "absolutely" thinks President Donald Trump will head across the pond in 2018.
Pete Donohue served his country in the U.S. Air Force, first as a pilot, then as a flight instructor. Now he helps passengers find their way…
President Trump said he had to fire Mike Flynn because Flynn lied to the vice president and the FBI. But that doesn't match with previous statements.
Robert Wood "Woody" Johnson IV and Jamie McCourt could be our next ambassadors to the United Kingdom and Belgium, respectively.
Five stop trip through the Middle East and Europe will be a crucial test for a president who faces chaos at home.