During the late 1980s, WONAAC unsuccessfully lobbied several feminist MPs including Sonja Davies and the Minister of Women's Affairs Margaret Shields for a more liberal abortion law in the form of a private member's bill. However, the Fourth Labour Government thought there was insufficient support for further abortion reform and instead passed the Contraceptive, Sterilisation and Abortion Amendment Act 1990, which eliminated the restriction on who could educate and provide services and supplies. The–then Health Minister and future Prime Minister Helen Clark sponsored the CS&A Amendment Act.