The Justice Department has filed a lawsuit against the District of Columbia, challenging the constitutionality of its restrictive gun laws, specifically the ban on semi-automatic firearms including the popular AR-15 model. This legal action comes from the Trump administration, which argues that these laws infringe upon the rights of citizens to possess firearms commonly used for lawful purposes. The lawsuit aims to lift the de facto ban on semi-automatic weapons and is part of a broader push by the administration to ensure wider accessibility to firearms across the nation.