Treasury Secretary Yellen Swears In Deputy Secretary Wally Adeyemo

Janet Yellen, U.S. Treasury secretary, wears a protective mask while swearing in Wally Adeyemo, deputy U.S. Treasury secretaryduring a ceremony at the Treasury Department in Washington, D.C., U.S., on Friday, March 26, 2021. Adeyemo, who served as deputy national security adviser for international economics in the Obama administration, will be the most senior-ranking Black person in the department's history. Photographer: Erin Scott/Bloomberg via Getty Images