Constitutional bans on same-sex unions were advocated in response to the legalization of same-sex marriage in other jurisdictions, notably
Canada and
Massachusetts. Some amendments and some proposed amendments forbade a state from recognizing even non-marital
civil unions and
domestic partnerships, while others explicitly allowed for same-sex unions that were not called "marriages". Such amendments had two main purposes: • Preventing a state's courts interpreting their state's constitution to permit or require legalization of same-sex marriage. • Preventing a state's courts recognizing same-sex marriages that were legally performed in other jurisdictions. Some proponents of such amendments feared that states would be forced to recognize same-sex marriages celebrated in other jurisdictions. They pointed to the
Full Faith and Credit Clause, which requires each state to recognize the public acts, records, and judicial proceedings of each other state. On the other hand, opponents argued that state constitutional amendments would do nothing to resolve this perceived problem. Traditionally, courts have held that a state is free to decline to recognize a marriage celebrated elsewhere if the marriage violates the state's strong public policy. (§134 of the First Restatement of Conflicts, on Marriage and Legitimacy (1934)). That tradition was broken in 1967 with the
Loving v. Virginia case decided by a unanimous Supreme Court, which confirmed that the full faith and credit clause did require recognition of all legal marriages. Similarly, in
Obergefell v. Hodges the Supreme Court ruled that the
federal constitution required state recognition of same-sex marriages. All state constitutions are trumped by the federal constitution due to the
Supremacy Clause.
Conservative mobilization State referendums on constitutional bans of same-sex unions have at times been accused of having been used as a "get-out-the-vote" tactic by some
Republicans and social conservatives. When voters see that a particular
legislative initiative appears on the ballot, they are thought to feel more motivated to turn out to vote, enhancing ballot numbers for other candidates and issues of their party. The presence of these amendments on state ballots has been credited by some as supposedly providing a boost to Republicans in the 2004 election, and the 2004 Ohio amendment in particular has been cited as aiding President
George W. Bush's reelection campaign by motivating
evangelical social conservatives in the state to go to the polls. President
George W. Bush's close political consultant,
Karl Rove, has been an enthusiastic proponent and organizer of legislation banning same-sex unions. After the
2006 elections some activists argued that such referendums were starting to lose their potential to mobilize conservative voters. Kevin Cathcart, director of
Lambda Legal pointed to the narrow defeat of Arizona's
Proposition 107, which would have rendered civil unions as well as same-sex marriage unconstitutional. Nevertheless, that same election saw seven such amendments pass; these seven included an amendment in Virginia which banned civil unions as well as same-sex marriages. ==Variants==