SEATTLE -- Scores of people rallied in downtown Seattle Tuesday to protest a California Supreme Court ruling that upheld that state's gay marriage ban.

Joe Mirabella helped organized the Tuesday evening rally at Westlake Center in Seattle. He said that the legalization of same-sex marriage is inevitable.

The California high court also held Tuesday that the estimated 18,000 same-sex weddings that took place in that state before the prohibition passed are still valid.

In Washington state, lawmakers recently approved a measure expanding the state's domestic partnership law, giving same-sex domestic partners all the rights and benefits afforded to married couples.

Opponents trying to overturn that measure are seeking to place a referendum on the November ballot. On Tuesday, those opponents challenged the wording of the potential ballot measure.

After the Westlake rally, an impromptu group broke off and marched up Pike Street.

The march ended in another rally at Cal Anderson Park.