The District of Columbia is currently involved in a dispute regarding the taxation of its residents. The dispute, which has been ongoing since the early 2000s, centers on the fact that the District of Columbia is treated differently to other states in terms of taxation. This has led to a number of court cases, with the most notable being the Supreme Court case of D.C. v. Heller in 2008. In this case, the court ruled that the District of Columbia's ban on handguns was unconstitutional. This ruling has had a significant impact on the taxation of District of Columbia residents, as the District of Columbia has been unable to tax certain goods and services in the same way as other states. Other disputes involving the District of Columbia include those related to federal funding, voting rights, and the status of the District of Columbia as the nation's capital. In terms of federal funding, the District of Columbia has long argued that it is not receiving its fair share of federal aid and has sought to change this through legal action. Similarly, the District of Columbia has argued for more voting rights, as it does not have a full voting member in Congress. Finally, the District of Columbia has sought to gain more autonomy in regard to its status as the nation's capital, as it is currently under the jurisdiction of Congress and the federal government.