"Heller" is a landmark Supreme Court case decided in 2008 that addressed the Second Amendment of the United States Constitution. The case involved a Washington, D.C. law that effectively banned handgun possession in the home. The Court ruled that the Second Amendment protects an individual's right to possess firearms for self-defense within the home. The decision in District of Columbia v. Heller was significant because it was the first time the Supreme Court explicitly affirmed an individual's right to bear arms. This ruling set a precedent for future cases regarding gun rights and regulations, influencing debates on firearm legislation across the country.