A campaign poster in Dublin encourages voters to say no to same-sex marriage ahead of a referendum in Dublin on Friday. Paul Faith/AFP/Getty Images hide caption

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Texas Republican state Sen. Craig Estes' bill reinforces that clergy would not have to perform same-sex marriages. Harry Cabluck/AP hide caption

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In rural North Dakota, where Melanie Hoffert grew up on her family farm, discussing subjects like homosexuality and same-sex marriage is often considered taboo. Courtesy of Beacon Press hide caption

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Joel Heitkamp smiles while broadcasting in 2009 at AM radio station KFGO in Fargo, N.D. Elaine Thompson/AP hide caption

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Diane Gira (left) and Valerie Nelson (right) pose with their son, Madison, in their home near Wahpeton, N.D. Maggie Penman/NPR hide caption

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The small town of Wahpeton, N.D., is one of the places where conversations on same-sex marriage are playing out in schools, churches and families. Maggie Penman/NPR hide caption

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Indiana Gov. Mike Pence holds a news conference at the Statehouse in Indianapolis, on Thursday, where he signed into law a bill that would allow business owners with strong religious convictions to refuse to provide services to same-sex couples. Michael Conroy/AP hide caption

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A rule from the federal Labor Department will guarantee that regardless of where legally married same-sex spouses live, they can take unpaid time off to care for a spouse or sick relative. iStockphoto hide caption

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The Rev. Charles Perry of Unity Church, in Birmingham, Ala., marries Curtis Stephens, center, and his partner of 30 years, Pat Helms, Monday at the Jefferson County Courthouse. Alabama began issuing marriage licenses to same-sex couples Monday after the U.S. Supreme Court refused to block the marriages in the state. Hal Yeager/AP hide caption

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Robert Bate of Birmingham holds signs endorsing same-sex marriage outside the Jefferson County Courthouse in Birmingham, Ala., Monday. On Tuesday, the chief justice of the state's Supreme Court said federal courts are overstepping their jurisdiction in deciding cases about the issue. Tamika Moore/AL.com/Landov hide caption

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Kimmy Denny and her partner, Barb Lawrence of Palm Harbor, Fla., wait outside a court hearing on gay marriage in Miami in July. On Jan. 6, same-sex marriages will be allowed in the Sunshine State. J Pat Carter/AP hide caption

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Kody Partridge (center right) and her partner, Lauri Wood, kiss at a same-sex marriage celebration Monday in Salt Lake City. The status of gay marriage remains uncertain in Kansas and Wyoming, where officials say no court has ruled on their ban specifically. George Frey/Getty Images hide caption

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Jennifer Hasler (left) and Karina Tittjung smile after picking up their marriage license at the Oklahoma County courthouse in Oklahoma City Monday. When the U.S. Supreme Court declined to take up the issue of gay marriage, it opened the door for gay men and women to marry in 11 states, including Virginia, Oklahoma, Utah, Wisconsin and Indiana. Nick Oxford/Reuters/Landov hide caption

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The Supreme Court has denied petitions to review same-sex marriage cases in several states, including Utah. In January, supporters of same-sex marriage held a rally at Utah's Capitol in Salt Lake City. Jim Urquhart/Reuters/Landov hide caption

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