Hillary Clinton's First Four Hours on Facebook

Welcome to the social network, Mrs. Clinton.

First lady of New York City Chirlane McCray, former Secretary of State Hillary Clinton and Deputy Mayor of New York City Richard Buery attend a round table conversation and press conference announcing a childhood development initiative with on April 1, 2015 in New York City.

Photograph: Andrew Burton/Getty Images

She's a holdout no more. 

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