In a first among Federal Circuit Courts of Appeals, “the Cincinnati-based 6th U.S. Circuit Court of Appeals reversed federal district court judges in Kentucky, Michigan, Ohio and Tennessee who had struck bans on same-sex marriage and said the issue is most appropriately decided in the political arena.”
This 2-1 decision conflicts with four other Circuit Courts of Appeals. The conflict might be enough for the US Supreme Court to take on the subject sometime. Thus far, however, that Court has refused to hear challenges to the opinions upholding same-sex marriage. Will it act differently now?
Opinion: http://www.ca6.uscourts.gov/opinions.pdf/14a0275p-06.pdf