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Photo by: Matt Rourke

Isabelle Barker (left) and her spouse, Cara Palladino, speak during a news conference on Thursday, Sept. 26, 2013, near Independence Hall in Philadelphia. The two, who were legally married in Massachusetts and later moved to Pennsylvania, have filed a federal lawsuit aiming to overturn a state law stating that same-sex marriages, including those recorded elsewhere, are not legal within the commonwealth. (AP Photo/Matt Rourke)

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