the territory are ineligible to vote for the president of the United States. People born in the U.S. Virgin Islands derive their U.S. citizenship from congressional statute. The U.S. Democratic and Republican parties allow U.S. Virgin Islands citizens to vote in their presidential primary elections for delegates to the respective national conventions. The main political parties in the U.S. Virgin Islands themselves are the Democratic Party of the Virgin Islands, the Independent Citizens Movement, and the Republican Party of the Virgin Islands. Additional candidates run as independents. At the national level, the U.S. Virgin Islands elect a delegate to Congress from their at-large . The elected delegate, while able to vote in committee, cannot participate in floor votes. The current House of Representatives delegate is Stacey Plaskett, a Democrat. Like other territories, the U.S. Virgin Islands does not have U.S. senators. At the territorial level, fifteen senators—seven from the district of St. Croix, seven from the district of St. Thomas and St. John, and one senator at large who must be a resident of St. John—are elected for two-year terms to the unicameral Virgin Islands legislature. There is no limit as to the number of terms they can serve. The U.S. Virgin Islands have elected a territorial governor every four years since 1970. Previous governors were appointed by the president of the United States. Legal system The U.S. Virgin Islands have a Superior Court and Supreme Court. The District Court of the Virgin Islands is responsible for cases brought under federal law, and the U.S. Attorney for the District of the Virgin Islands can bring federal criminal cases there. The Superior Court is responsible for hearing cases under U.S. Virgin Islands law at the trial level, and the Supreme Court is responsible for appeals from the Superior Court for all appeals filed on or after January 29, 2007. (Appeals filed prior to that date were heard by the Appellate Division of the District Court.) Appeals from the federal District Court are heard by the United States Court of Appeals for the Third Circuit, located in Philadelphia, Pennsylvania. District Court judges are appointed by the U.S. president, while Superior Court and Supreme Court judges are appointed by the governor. As of 2019, the USVI courts apply both American common law and the 2019 US Virgin Islands Code as passed by the territorial legislature. Because the USVI is not a state and