Gay marriage will be on the minds of lawmakers in Washington state and New Jersey on Monday.

Washington Governor Chris Gregoire will sign a gay marriage bill approved by lawmakers into law at 11:30AM, making Washington the seventh state to legalize such unions.

The Democrat-controlled House approved the measure with a 55-43 vote last Wednesday, a day after a federal court declared California's gay marriage ban, Proposition 8, in violation of the United States Constitution, and one week after the Washington Senate passed the measure with a wider margin than expected.

Gregoire for the first time endorsed marriage equality at a press conference introducing the bill last month. Citing her Catholic faith, Gregoire said she struggled with the issue.

The law will go into effect on June 7 provided opponents do not gather sufficient signatures to put it up for a vote. In that case, marriage equality would be put on hold pending the outcome of a November election.

Recent polls have found that a narrow majority of Washington voters do not favor repeal. Since 2007, Washington has recognized gay couples with domestic partnerships. A 2009 effort to repeal those protections was rejected by voters.

New Jersey lawmakers will vote on similar legislation this week. The Senate will debate the issue on Monday and the Assembly on Thursday.

Senate President Stephen Sweeney has said he believes the legislation will clear both chambers.

“It is absolutely going to pass on Monday, and I expect it to pass the Assembly on Thursday, and it's going to go to the governor's desk,” Sweeney said during an appearance on WNYC's the Brian Lehrer Show.

Sweeney, who recently called his 2010 vote against marriage equality “wrong,” also conceded that he does not have the 27 votes in the Senate to override an expected veto from Republican Governor Chris Christie. Christie has said he supports the state's civil unions law.

“If the governor vetoes the bill, we're gonna fight to override the governor,” Sweeney said. “I have two years to do it almost, so that gives us plenty of time to work on people.”