LINCOLN, Neb. (AP) — The ACLU of Nebraska wants a judge to bar a prison inmate and his transgender fiancee from joining the ACLU’s legal challenge to the state ban on same-sex marriage.

Inmate Harold B. Wilson and Gracy Sedlak, formerly named John Jirovsky, earlier this month filed a motion to intervene in the federal lawsuit. It was filed in November. On Monday ACLU attorneys filed an objection, saying Wilson and Sedlak have not demonstrated or alleged that the seven Nebraska couples already in the suit do not adequately represent the couple’s interests. The ACLU also says any extra complainants would unduly delay and complicate the case.

The judge has yet to rule.

Wilson and Sedlak say they’ve twice been denied a marriage license by Lancaster County.