A new poll shows decreasing support for a proposed constitutional amendment that would ban gay marriage in North Carolina.

Voters in May will decided on a far-reaching amendment that would make it unconstitutional for North Carolina to recognize gay and lesbian couples with marriage, civil unions and possibly even domestic partnerships.

While 59 percent of the 615 voters contacted by Public Policy Polling said they favor the amendment, that's a 4 point drop from the group's previous poll conducted last month. Thirty-five percent said they would vote against the measure.

However, the survey only asked about marriage; when other forms of legal recognition are included, support for the amendment collapses.

A majority (60%) of respondents support either giving gay couples full marriage (26%) or civil unions (34%), a 9 point increase from last month's survey. Thirty-eight percent say there should be no legal recognition of gay couples' unions.

“What this data reveals is when the issue is not obscured by legislative language, North Carolinians overwhelmingly oppose this vague, untested and overly-broad ban on basic relationship recognitions and protections,” said Stuart Campbell, executive director of Equality North Carolina. “As a result, it will be our tireless goal to educate the public [on] these very real harms. … [A] coalition effort, reaching out to diverse North Carolina communities, will be instrumental in kicking off this crucial discussion and campaign.”