More than 700,000 citizens living in the capital of the United States do not have full representation in Congress. Once a fringe issue, a bill for DC statehood recently passed the Democratically-controlled House of Representatives, but faces high hurdles in the Senate. Zack Smith, from the conservative Heritage Foundation and William Roberts, from the liberal Center for American Progress, spar over the constitutional, historical, ideological and political impediments to statehood for the District of Columbia.