Declared state-sponsored segregation in public schools unconstitutional, overturning Plessy v. Ferguson.

Established a woman's constitutional right to an abortion, impacting state laws and sparking ongoing debate.

To expand health insurance coverage, improve healthcare quality, and reduce healthcare costs.

To reduce carbon emissions from power plants and combat climate change.

Legislative branch; enacts laws, controls the budget, and oversees the executive branch.

Head of the executive branch; enforces laws, manages federal agencies, and sets policy goals.

Judicial branch; interprets laws, resolves disputes, and ensures laws are constitutional.

Reviews and coordinates federal regulations to ensure effectiveness and alignment with presidential goals.