FILE-- Sen. Kamala Harris (D-Calif.), a Democratic presidential hopeful, takes a photo following an American Federation of Teachers event on teacher's pay and education in Detroit, May 6, 2019. Harris on May 20 announced a proposal to close the gender wage gap by requiring larger companies to certify that men and women are paid equally, in an effort to combat wage discrimination on a federal level. (Brittany Greeson/The New York Times)
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