The referendum was supported by PLAC, Fianna Fáil, some members of Fine Gael, the Catholic hierarchy, and opposed by various groups under the umbrella name of the Anti-Amendment Campaign (AAC), including Labour senator (and future President of Ireland) Mary Robinson, feminist campaigners, and trade unions. Few in Fine Gael or Labour campaigned against the referendum, and before the vote, Garret FitzGerald declared that he would vote against it. Sinn Féin and the Workers' Party opposed the amendment, and the Irish Council of Churches (representing the main Protestant churches) campaigned against it.