The St. Louis Zoo-Museum district collects property taxes from residents of both St. Louis City and County, and the funds are used to support cultural institutions including the St. Louis Zoo, St. Louis Art Museum and the Missouri Botanical Gardens. Similarly, the Metropolitan Sewer District provides sanitary and storm sewer service to the city and much of St. Louis County. The Bi-State Development Agency (now known as Metro) runs the region's MetroLink light rail system and bus system. The City of St. Louis Sheriff's Office (STLSO or STLCSO) primarily provides security services for the courtrooms, as well as serving court documents and issuing gun carry permits. However, in 2022 they gained the ability to make arrests and traffic stops. State and federal government St. Louis is split between 11 districts in the Missouri House of Representatives: all of the 76th, 77th, 78th, 79th, 80th, 81st, 82nd, and 84th, and parts of the 66th, 83rd, and 93rd, which are shared with St. Louis County. The 5th Missouri Senate district is entirely within the city, while the 4th is shared with St. Louis County. At the federal level, St. Louis is the heart of , which also includes part of northern St. Louis County. A Republican has not represented a significant portion of St. Louis in the U.S. House since 1953. Correspondingly, despite voting Republican prior to 1928 in presidential elections, from then on the city has become a Democratic stronghold at the presidential level. George H. W. Bush in 1988 was the most recent Republican to win even a quarter of the city's votes in a presidential election. The United States Court of Appeals for the Eighth Circuit and the United States District Court for the Eastern District of Missouri are based in the Thomas F. Eagleton United States Courthouse in downtown St. Louis. St. Louis is also home to a Federal Reserve System branch, the Federal Reserve Bank of St. Louis. The National Geospatial-Intelligence Agency (NGA) also maintains major facilities in the St. Louis area. The Military Personnel Records Center (NPRC-MPR) located at 9700 Page Avenue in St. Louis, is a branch of the National Personnel Records Center and is the repository of over 56 million military personnel records and medical records pertaining to retired, discharged, and deceased veterans of the U.S. armed forces. Education Colleges and universities The city is home to three national research universities, Washington University in