Biden Administration November 23, 2020 7:27 am 5 Things to Know About Linda Thomas-Greenfield President-elect Joe Biden is expected to nominate Linda Thomas-Greenfield as U.S. Ambassador to the United Nations. Here are five things to know about the career diplomat. US & World Videos 1:42 Shooting investigation at DTLA warehouse 3:20 Encampment remains on USC 1:39 Bicyclist killed in hit-and-run 3:43 Despite encampment's clearing, safety concerns linger at UCLA 4:09 Parents speak out after son's beating at LA juvenile hall