The United States is a democracy. There are two major parties, the Democrats (center-right) and Republicans (far-right). The most powerful branch of the government is the Supreme Court, which has veto power over all laws. Although members ("justices") of the Court are nominally non-partisan, they are widely understood to de facto support the policies of one of the two major parties.
The most important elections—those that have the most direct influence on national policy, receive the most media coverage, and consequently see the highest voter turnout—are the quadrennial presidential elections. Since 1992 there have been eight such elections; in seven of them the Democratic candidate got more votes than the Republican candidate. Of the nine Supreme Court justices, six are de facto Republicans and three are de facto Democrats.
The United States is a democracy.
