The US Supreme Court is preparing to deliver a significant ruling on birthright citizenship in the case known as Trump v. Barbara, which questions the validity of citizenship for children born to undocumented immigrants. This case challenges the interpretation of the 14th Amendment, which traditionally grants citizenship to anyone born on US soil. The Trump administration argues that this amendment only applies to former slaves, a stance that has generated skepticism among Supreme Court justices.

In New Zealand, citizenship laws have evolved, moving from a jus soli approach—where citizenship is granted based on birthplace—to a hybrid model since 2005. This change means children born in New Zealand to non-citizen parents do not automatically receive citizenship, potentially creating a class of undocumented residents. The Immigration (Enhanced Risk Management) Amendment Bill, currently under consideration, aims to enhance the government's authority to expel long-term residents, raising concerns about the rights of individuals who may be affected.

The Waitangi Tribunal's 2025 report examined citizenship in the context of Māori identity, revealing gaps in the current Citizenship Act that limit citizenship by descent to one generation. This exclusion raises questions about the rights of Māori living abroad and their connection to New Zealand. As both countries grapple with the complexities of citizenship, the US Supreme Court's ruling may provide a framework for rethinking citizenship in New Zealand, aligning it with the unique historical and cultural context of the nation.