Question: Which Democrat running for president in 2020 currently holds Maryland’s 6th district in the US House of Representatives?

Passages:
John Kevin Delaney (born April 16, 1963) is an American politician and businessman who has been the United States Representative for Maryland's 6th congressional district since 2013 and is running for President of the United States in 2020.  The district, the state's second-largest, includes nearly the entire western portion of the state, but the bulk of its vote is cast in the outer suburbs of Washington, D.C. He is a member of the Democratic Party. Peter C. Shannon (1821 in New Alexandria, Pennsylvania – April 13, 1899 in San Diego, California) was an American lawyer, politician, and judge.  After practicing law for a time in Pittsburgh, Pennsylvania, in 1852 Shannon ran unsuccessfully for a seat in the US House of Representatives (as a Democrat), losing by five hundred votes to Whig David Ritchie.  Shannon was then appointed president judge of the local district court in 1852 by Pennsylvania Governor William Bigler, but served for only a year, having been defeated for re-election in 1853.  At the beginning of the Civil War Shannon became a Republican and was elected to the Pennsylvania House of Representatives, serving two terms, 1862 and 1863.  He was commissioned Lieutenant Colonel in a regiment which he helped raise, but resigned to continue his political career.  In 1862 he campaigned with Governor Andrew Curtin in his successful re-election bid, and in 1864 was part of Lincoln's re-election campaign in Pennsylvania. Dave Bruderly, an environmental engineering consultant who ran and lost against incumbent, Cliff Stearns (R), for Florida's 6th congressional district seat see Florida U.S. House election, 2006.  He is a graduate of the United States Merchant Marine Academy in Marine Engineering and of Columbia University with an ocean engineering degree.  Bruderly is a Democrat running in a six-county District that includes Alachua, Bradford, Clay, Duval, Lake, Levy, Marion and Gilchrist Counties. Washington's 6th congressional district encompasses the Olympic Peninsula, most of the Kitsap Peninsula, and most of the city of Tacoma.  The 6th District has been represented in the U.S. House of Representatives by Derek Kilmer, a Democrat from Artondale, since January 2013.  He succeeded 36-year incumbent and fellow Democrat Norm Dicks, at the time the dean of the Washington delegation. Tom Shively (born November 11, 1946) is a Democratic member of the Missouri House of Representatives.  He represents the 8th District, encompassing all or portions of Linn, Macon, Shelby and Sullivan counties.  Due to Missouri House redistricting Shively ran for the newly created Missouri House 5th district in November, 2012.  He lost to Republican Lindell Shumake, who until redistricting had represented the Missouri House 6th district.  Shively will continue to represent the 8th district until January, 2013. Yvette Diane Clarke (born November 21, 1964) is a Democratic member of the US House of Representatives from New York.  Clarke's district was numbered the 11th district from 2007 to 2013, and redistricted as the 9th district in 2013 covering much of central Brooklyn. Warren T. Furutani (born October 16, 1947) is an American politician who served in the California State Assembly.  He is a Democrat and a fourth-generation Japanese American.  Furutani was elected in a special election in 2008.  He replaced Laura Richardson as the member of the US House of Representatives from California's 37th district.  Prior to being elected, he served on the Los Angeles Unified School District and then the Los Angeles Community College District Board of Trustees.  He was the first Asian Pacific American ever elected to the LAUSD in 1987 and became the board's president in 1991. William W. Brooke (born April 5, 1957) is the executive vice president and managing partner of Harbert Management Corporation in Birmingham, Alabama.  He was one of seven candidates who ran for the Republican Party nomination in the 2014 US House of Representatives primary in the Alabama's 6th district, placing fifth. Hokkaidō 7th district is a single-member constituency of the House of Representatives in the Diet of Japan.  It is located in Japan's northernmost prefecture Hokkaidō.  In a 2002 redistricting and reapportionment, Hokkaidō lost one seat and what had been the Hokkaido 13th district in the 1996 and 2000 general elections was renamed the 7th district.  The previous 7th district was split up: the largest part merged into the 6th district and the remaining areas merged into the 10th and 12th districts. Maryland's 6th congressional district elects a representative to the United States House of Representatives from the northwest part of the state.  Today the district comprises all of Garrett, Allegany, and Washington counties as well as portions of Montgomery and Frederick counties.  The seat is currently represented by John Delaney (D).

Supporting sentences:
John Kevin Delaney (born April 16, 1963) is an American politician and businessman who has been the United States Representative for Maryland's 6th congressional district since 2013 and is running for President of the United States in 2020.  The district, the state's second-largest, includes nearly the entire western portion of the state, but the bulk of its vote is cast in the outer suburbs of Washington, D.C. He is a member of the Democratic Party.