Cambridge

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Sarah Ashley Wheaton, center front, joins with other graduates from the Harvard Law School as they wave gavels and cheer during Harvard University commencement ceremonies, Thursday, May 29, 2014, in Cambridge, Mass. (AP Photo/Steven Senne)

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Singer Aretha Franklin waves while standing to receive an honorary Doctor of Arts degree as Chilean author Isabel Allende, left, and former Mayor of New York City Michael Bloomberg, right, look on during Harvard commencement ceremonies, Thursday, May 29, 2014, in Cambridge, Mass. (AP Photo/Steven Senne)

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Former President George H. W. Bush, left, shakes hands with Vice President and Secretary of Harvard University Marc Goodheart, right, as Bush is awarded with an honorary Doctor of Laws degree during Harvard commencement ceremonies, Thursday, May 29, 2014, in Cambridge, Mass. (AP Photo/Steven Senne)

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Former Mayor of New York Michael Bloomberg, left, shakes hands with Vice President and Secretary of Harvard University Marc Goodheart, right, as he is awarded with an honorary Doctor of Laws degree during Harvard commencement ceremonies, Thursday, May 29, 2014, in Cambridge, Mass. (AP Photo/Steven Senne)

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Samantha Paul, left, and Tiffany Elliot of Maynard, Mass. laugh as they attend a celebration held at Cambridge City Hall in Cambridge, Mass., Friday, May 16, 2014, to mark the 10th anniversary of the first same-sex weddings in Massachusetts and the nation. Cambridge was the first city in the country to issue marriage licenses on May 17, 2004. (AP Photo/Elise Amendola)

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Irma, left, and her wife, Angela Bauer-Levesque pose on the stairway at Cambridge City Hall in Cambridge, Mass., Friday, May 16, 2014, prior to a renewal of their marriage vows in celebration of the 10th anniversary of the first same-sex weddings in Massachusetts and the nation. The women recalled being swept up in the excitement at they passed by city hall in 2004. Officials had decided to being marrying couples at midnight and the two jumped in line. The Cambridge couple said they got their license at 4:20 in the morning. (AP Photo/Elise Amendola)

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Same-sex couples including Mal Malme, foreground left, and her wife Meg Stone stand to renew their marriage vows during a ceremony at Cambridge City Hall in Cambridge, Mass. Friday, May 16, 2014. The event was to celebrate the 10th anniversary of the first same-sex weddings in Massachusetts and the nation. Cambridge was the first city in the country to issue marriage licenses on May 17, 2004. (AP Photo/Elise Amendola)

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In this May 9, 2014 photo, Marcia Hams, left, and her wife, Susan Shepherd, stand outside their home in Cambridge, Mass. Hams and Shepherd were the first couple to complete the application for a wedding license in Cambridge as Massachusetts became the first state to legalize same-sex marriage in the United States. They were wed on May 17, 2004. (AP Photo)