The blog Cal Law, which focuses on California legal questions, suggests that if voters approve a new, constitutional ban on same sex marriage this November, the result could be the end of state-sanctioned marriage of any kind. Everyone would sign up for domestic partnerships, and the definition of marriage would be left up to the churches.

This seems a bit much to me, but the look for the anti-initiative/pro-gay marriage campaign to raise the question of whethre not only same sex marriages but also domestic partnerships could be at legal risk if the initiative fails. And the legal protections for gay couples that come with domestic partnerships are broadly popular in California.