The Referendum Commission has denied giving contradictory advice about the impact of the Marriage Equality Referendum.
A spokesman said remarks this morning by Justice Kevin Cross did not contradict comments made in a newspaper interview last week.
The Mothers & Fathers Matter group, advocating a No vote, says it is contradictory to say that the referendum is not about surrogacy, while also saying it would limit the ability of the Oireachtas to give preference to opposite-sex couples.
The Commission says that, while the Oireachtas would need a fact-based reason to discriminate against same-sex couples in areas like surrogacy, it would not be impossible to do so.