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WASHINGTON, DC - MAY 12: Former First Lady Michelle Obama (L) waves as former White House chef and Senior Policy Advisor for Nutrition Policy Sam Kass (R) hugs Bruktawit Tesfaye (2nd R) during the Partnership for a Healthier America Summit May 12, 2017 in Washington, DC. The PHA held its summit to address childhood obesity. (Photo by Alex Wong/Getty Images)