Melinda Gates, 53, former Microsoft employee, and wife of Microsoft founder Bill Gates. She is co-founder of the Bill & Melinda Gates Foundation. While at Microsoft, she was project manager for Microsoft Bob, Encarta and Expedia. (AP Photo)
Melinda Gates, left, Chelsea Clinton, center, and Hillary Rodham Clinton participate in the "No Celings: The Full Participation Project," in New York, Monday, March 9, 2015. (AP Photo/Richard Drew)