While it may have lost some ground, support for a gay marriage law in Washington state remains strong as the election nears.

According to a Public Policy Polling survey of 932 likely voters, 52 percent of respondents said they plan to vote to keep the law, while 42 percent said they plan to reject it. Six percent remain undecided.

“We have found that undecided voters on these marriage questions generally end up voting anti-equality but even given that it looks like a favorite for passage,” pollsters wrote in announcing their results. “Every age group supports legalizing gay marriage except for seniors, who oppose it 43/51. Voters under 45 support it by a 57/37 margin.”

A SurveyUSA poll conducted in September found an 18-point lead for Referendum 74.

A barrage of television ads from opponents claiming passage would hurt children and threaten religious freedom chipped away at that lead.

Supporters have also out-raised opponents. Filings with the Public Disclosure Commission show Washington United for Marriage, the group working to approve Referendum 74, has raised $11.9 million, while Preserve Marriage Washington's fundraising efforts have resulted in $2.6 million, less than the $4 million the campaign said it expected to raise.

High-profile pro-marriage equality donors include New York City Mayor Michael Bloomberg, Microsoft co-founder Bill Gates, and Amazon CEO Jeff Bezos.