Biden's departing UN envoy says US rivals will fill the vacuum if Trump abandons global leadership FILE - Linda Thomas-Greenfield, United States Ambassador to the United Nations, addresses members of the U.N. Security Council before voting during a meeting on Non-proliferation of nuclear weapons, April 24, 2024 at United Nations headquarters. (AP Photo/Eduardo Munoz Alvarez, File)
FILE - Linda Thomas-Greenfield, United States Ambassador to the United Nations, speaks after a meeting of the United Nations Security Council to discuss the war in Ukraine, Aug. 24, 2023, at United Nations headquarters. (AP Photo/John Minchillo, File)
FILE - Linda Thomas-Greenfield, United States Ambassador to the United Nations, speaks after a meeting of the United Nations Security Counci, Aug. 24, 2023, at United Nations headquarters. (AP Photo/John Minchillo, File)
U.S. UN Ambassador Linda Thomas-Greenfield talks with US Secretary of State Antony Blinken after a meeting in the United Nations Security Council, Thursday, Dec. 19, 2024. (AP Photo/Richard Drew)
Copyright 2024 The Associated Press. All rights reserved.
FILE - Linda Thomas-Greenfield, United States Ambassador to the United Nations, addresses members of the U.N. Security Council before voting during a meeting on Non-proliferation of nuclear weapons, April 24, 2024 at United Nations headquarters. (AP Photo/Eduardo Munoz Alvarez, File)