The Supreme Court is expected to issue rulings on two same-sex marriage cases this month, including one dealing with California's Proposition 8, which makes same-sex marriage unconstitutional in the state. Take a look at the path same-sex marriage has taken in states across the country.
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Maine has recognized domestic partnerships since 2004. Lawmakers passed a law to legalize same-sex marriage in 2009, but it was repealed by voters. In November 2012, voters reversed themselves, passing a ballot measure that legalizes same-sex marriage.