[djf]

Actually, anybody can enter sort of a “contract” that achieves the same thing.

Just give each other power of attorney.

[muir_redwoods]

Exactly, the right of contract, not its precise form, is what's important here. The use of a civil union could arguably be the sop that prevents the assault on marriage.

I am unaware of any state that has legalized civil union where gay marriage has been legalized.