The Tennessee Marriage Protection Amendment, also known as Tennessee Amendment 1 of 2006, is a state constitutional amendment banning same-sex unions. The referendum was approved by 81% of voters. It specified that only a marriage between a man and a woman could be legally recognized in the state of Tennessee. This prohibited same-sex marriages within the state, reinforcing previously existing statutes to the same effect[3] until it was overturned by the Obergefell v. Hodges ruling in June 2015.