Jan. 27 (UPI) -- President Joe Biden's nominee to be the United States' top ambassador to the United Nations will appear in Congress on Wednesday to begin her confirmation hearing.
Linda Thomas-Greenfield, who was nominated to the post last month, will testify before the Senate foreign relations committee beginning at 10 a.m. EST.
Thomas-Greenfield worked more than three decades in the State Department, serving in diplomatic posts from Kenya to Pakistan, and was U.S. ambassador to Liberia under former Presidents George W. Bush and Barack Obama between 2008 and 2012.
She later became the top U.S. diplomat for African affairs under Obama.
It's expected that Thomas-Greenfield will be questioned about Biden's plan to rejoin the Iran nuclear deal and her view of potential national security threats from China.
A native of Louisiana, Thomas-Greenfield has spoken in the past about growing up in the segregated South and how those experiences have shaped her diplomatically.
"She understands peacekeeping, she understands the U.N., she understands the developing world," said Wendy Sherman, a nominee for deputy secretary of state.
"The U.S. Chamber of Commerce strongly supports the nomination of Ambassador Linda Thomas-Greenfield to be Ambassador of the United States to the United Nations," the chamber said in a letter to the committee Tuesday.
"She is a highly-qualified nominee and, from the perspective of the U.S. business community, is well prepared to tackle the foreign policy challenges facing the United States.
"Ambassador Thomas-Greenfield's long record of public service and accomplishment demonstrates that she understands these imperatives. The chamber appreciates the committee scheduling the Jan. 27 hearing and urges you to approve her nomination."
Several of Biden's Cabinet nominees have received confirmation hearings so far and a few have been confirmed by the full Senate, including Secretary of State Antony Blinken, Treasury Secretary Janet Yellen, Defense Secretary Lloyd Austin III and Director of National Intelligence Avril Haines.
Alejandro Mayorkas, Biden's nominee for Homeland Security secretary, could receive full confirmation on Wednesday.
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