Maryland’s marriage equality law may be in danger, as a group hoping to overturn the law in a referendum gathers signatures for support. 

The Maryland Marriage Alliance needs 55,736 valid signatures in order to place the referendum on the ballot in November. According to the group’s spokespeople, they’ve already collected more than 30,000 signatures. The full 55,736 must be submitted by June 30.

Polls from Maryland show voters are pretty equally divided on marriage equality, with slightly more people in favor of keeping the law than overturning it.

Ray Goldstein, a spokesperson for the Maryland State Board of Elections, said the Alliance had not submitted any petitions to the election board as of Friday. He said he didn’t expect the group to do so until on or shortly before the May 31 deadline for submitting one-third of the required signatures.

“We’ve expected those who are opposed to all children having equal protections under the law to gather more than enough signatures to qualify for the ballot,” said Josh Levin, campaign manager for Marylanders for Marriage Equality, the organization leading the campaign to defeat the referendum and retain the marriage law.