It might just be a temporary victory, but today the California Supreme Court overturned a ban on gay marriage that was voted into law (as Proposition 22) back in 2000.

Domestic partnerships are not a good enough substitute for marriage, the justices ruled 4-3 in an opinion.

The cases were brought by the city of San Francisco, two dozen gay and lesbian couples, Equality California and another gay rights group in March 2004 after the court halted San Francisco’s monthlong same-sex wedding march that took place at Mayor Gavin Newsom’s direction.

“Today the California Supreme Court took a giant leap to ensure that everybody – not just in the state of California, but throughout the country – will have equal treatment under the law,” said City Attorney Dennis Herrera, who argued the case for San Francisco.

Let’s hope so. Even the Governator understands that continuing to fight progress isn’t doing anyone any good:

Gov. Arnold Schwarzenegger, who has twice vetoed legislation that would’ve granted marriage rights to same-sex couples, said in a statement that he respected the court’s decision and “will not support an amendment to the constitution that would overturn this state Supreme Court ruling.”

Indeed. Now, let’s see some weddings!