On January 16, 2015, the U.S. Supreme Court agreed to hear four cases, on appeal from the Sixth Circuit, on whether states may constitutionally ban same-sex marriages or refuse to recognize such marriages legally performed in another state. They were decided by the court under the heading of Obergefell on June 26, 2015, when a 5–4 majority of justices led by Justice Anthony Kennedy declared there is a constitutional right for same-sex couples to marry and reversed the Sixth Circuit's judgment.

Australia remains one of the few countries in the OECD to have not legalised same-sex marriage.  Shame.