WASHINGTON, DC - NOVEMBER 14: U.S. first lady Michelle Obama delivers opening remarks during the final Joining Forces event in the East Room of the White House November 14, 2016 in Washington, DC. Obama hosted the event to celebrate the successes and share best practices so to continue the work of the Mayors Challenge to End Veteran Homelessness. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - NOVEMBER 14:  U.S. first lady Michelle Obama delivers opening remarks during the final Joining Forces event in the East Room of the White House November 14, 2016 in Washington, DC. Obama hosted the event to celebrate the successes and share best practices so to continue the work of the Mayors Challenge to End Veteran Homelessness.  (Photo by Chip Somodevilla/Getty Images)