oldest art school in the capital, was absorbed into the George Washington University in 2014, now serving as its college of arts. The University of the District of Columbia (UDC) is a public land-grant university providing undergraduate and graduate education. The district's medical research institutions include Washington Hospital Center and Children's National Medical Center. The city is home to three medical schools and associated teaching hospitals: George Washington, Georgetown, and Howard universities. Libraries Washington, D.C. has dozens of public and private libraries and library systems, including the District of Columbia Public Library system. Library of Congress The Library of Congress (LOC) is the research library that officially serves the United States Congress and is the de facto national library of the United States. It is a complex of three buildings: Thomas Jefferson Building, John Adams Building and James Madison Memorial Building, all located in the Capitol Hill neighborhood. The Jefferson Building houses the library's reading room, a copy of the Gutenberg Bible, Thomas Jefferson's original library, and several museum exhibits. District of Columbia Public Library The District of Columbia Public Library operates 26 neighborhood locations including the landmark Martin Luther King Jr. Memorial Library. Folger Shakespeare Library The Folger Shakespeare Library is a research library and museum located in the Capitol Hill neighborhood. It houses the world's largest collection of Shakespeare-related material and third largest collection of English books printed before 1641. The Folger Library also runs special events and cultural attractions, most notably the Folger Theatre, which is known for being a leading interpreter of Shakespeare works, in addition to those from other authors. City government and politics Politics Article One, Section Eight of the United States Constitution grants the United States Congress "exclusive jurisdiction" over the city. The district did not have an elected local government until the passage of the 1973 Home Rule Act. The Act devolved certain Congressional powers to an elected mayor and the thirteen-member Council of the District of Columbia. However, Congress retains the right to review and overturn laws created by the council and intervene in local affairs. Washington, D.C., is overwhelmingly Democratic, having voted for the Democratic presidential candidate solidly since it was granted electoral votes in 1964. Each of the city's eight wards elects a single member of the council and residents elect four at-large members to represent the district as a whole. The council chair is also elected at-large. There