Washington Gov. Chris Gregoire signs gay marriage bill into law

Gregoire signed the bill surrounded by gay rights supporters. 'I'm proud our same-sex couples will no longer be treated as separate but equal,' she said.

Gov. Chris Gregoire handed gay rights advocates a major victory, signing into law a measure that legalizes same-sex marriage in Washington state, making it the seventh in the nation to allowgay and lesbian couples to wed.

Gregoire signed the bill surrounded by gay rights supporters. "I'm proud our same-sex couples will no longer be treated as separate but equal," she said.

It's a historic moment, but same-sex couples can't walk down the aisle just yet.

The law takes effect June 7, but opponents on multiple fronts already are preparing to fight.

Opponents planned to file a challenge Monday that could put the law on hold pending the outcome of a November vote. Separately, an initiative was filed at the beginning of the session that opponents ofgay marriage say could lead to the new law being overturned.

The state reception room at the Capitol was packed with gay rights supporters and at least 40 lawmakers from the House and Senate

Sen. Ed Murray, a Seattle Democrat who is gay and has sponsored gay rights legislation for years, told the cheering crowd: "My friends, welcome to the other side of the rainbow. No matter what the future holds, nothing will take this moment away from us."

As the Democratic governor signed the legislation, a man shouted, "Do not betray Christ!" However, his voice was overwhelmed by gay-marriage supporters who cheered and spoke loudly during his outburst.

Bob Struble, 68, of Bremerton, was removed from the room and said he was given a warning by security. Struble said he believes the state will halt gay marriage in a public vote. "We'll be doing everything we can to overturn this unfortunate law," he said

Meanwhile, Republican presidential candidate Rick Santorum, who opposes gay marriage, was in town speaking with conservative voters. Santorum also planned to meet with Republican lawmakers at the Capitol later Monday.

Gregoire's signature comes nearly a week after a federal appeals court declared California's ban ongay marriage unconstitutional, saying it was a violation of the civil rights of gay and lesbian couples.

A three-judge panel of the 9th Circuit Court of Appeals gave gay marriage opponents time to appeal the 2-1 decision against Proposition 8 before ordering the state to allow same-sex weddings to resume. The judges also said the decision only applies to California, even though the court has jurisdiction in nine Western states.

Washington state has had domestic partnership laws since 2007, and in 2009 passed an "everything butmarriage" expansion of that law, which was ultimately upheld by voters after a referendum challenge.

Opponents said they would file a ballot challenge after Gregoire signed the measure that would require voters in November to either uphold or overturn the law. If the referendum gets enough signatures the law is put on hold pending the outcome of a November vote.

Separately, an anti-gay marriage initiative was filed at the beginning of the session, but the language is still being worked out so no signatures have been collected yet. An initiative alone would not pause the law.

Gay marriage is legal in New York, Connecticut, Iowa, Massachusetts, New Hampshire, Vermont and Washington, D.C.

Same-sex marriage also has the backing of several prominent Pacific Northwest businesses, including Microsoft Corp., Nike Inc. and Starbucks Corp.

Legislative committees in Maryland heard testimony on gay marriage last week. Lawmakers in New Jersey are expected to vote on gay marriage soon, with a vote in the state Senate on Monday and a vote in the Assembly on Thursday.

N.J. Gov. Chris Christie, who is pushing for a public vote on the issue, says he'll veto the bill if it comes to his desk. Maine could see a gay marriage proposal on the November ballot.

Proposed amendments to ban gay marriage will be on the ballots in North Carolina in May and in Minnesota in November.