John D. Cartier is a veteran attorney with a distinguished background in civil litigation, government relations, election law, and public policy. Known for his strategic insight and steadfast dedication to justice, John has built a career grounded in civic engagement and public service. He now brings his broad legal expertise to his new role as Attorney General for the Umóⁿhoⁿ Tribe of Nebraska.

A graduate of the University of Nebraska–Lincoln College of Law, John began his legal journey as Director of Voting Rights at Civic Nebraska, where he led the state’s largest election protection program. Over five years, he designed and implemented legal and policy initiatives to promote fair, accessible elections throughout Nebraska.

Among his most notable achievements during this period was founding and directing Nebraska Counts, the state’s sole Complete Count Committee for the 2020 Census. John mobilized a statewide coalition of nonprofits, civic leaders, and community organizations to ensure an accurate count, efforts that helped secure billions in federal funding critical to Nebraska’s infrastructure, education, healthcare, and public safety for the coming decade.

John later served as General Counsel for the For Our Future Action Fund, leading its national legal department. In this role, he oversaw complex regulatory compliance across multiple battleground states, supporting pro-labor candidates and progressive policy efforts during key election cycles.

He went on to establish Cartier Law, LLC, in Lincoln, Nebraska, specializing in civil rights litigation, employment law, and nonprofit compliance. As principal attorney, he represented individuals and mission-driven organizations with professionalism, advocacy, and integrity. In 2024, John joined Omnus Law as a partner, expanding his practice to include high-impact civil and corporate legal work nationwide.

Now serving as Attorney General for the Umóⁿhoⁿ Tribe of Nebraska, John brings with him a profound respect for tribal sovereignty and a deep commitment to justice, transparency, and community. He is honored to support the Tribal Council and advocate for the legal and cultural rights of the Umóⁿhoⁿ Nation.