The following amendment to the Louisiana state constitution just passed with an 80% margin:
Marriage in the state of Louisiana shall consist only of the union of one man and one woman. No official or court of the state of Louisiana shall construe this constitution or any state law to require that marriage or the legal incidents thereof be conferred upon any member of a union other than the union of one man and one woman. A legal status identical or substantially similar to that of marriage for unmarried individuals shall not be valid or recognized. No official or court of the state of Louisiana shall recognize any marriage contracted in any other jurisdiction which is not the union of one man and one woman.
Andrew Sullivan sums it up perfectly:
This is a radical denial of any civil protections for gay couples at all – the most radical attack on an American minority since Jim Crow. Even the mildest protections for a gay couple that are integral to any meaningful bond – visitation rights in hospital, inheritance rights, the right not to testify against one another in court, and so on – will now be vulnerable to legal challenge or flat-out denied gay couples under the law.
So much for visiting New Orleans for Mardi Gras. Louisiana is off the list.