Maryland's 6th congressional district elects a representative to the United States House of Representatives from the northwest part of the state. The district comprises all of Garrett, Allegany, Frederick, and Washington counties as well as a portion of Montgomery County. David Trone (D) is its current representative. The previous boundaries of the district were the subject of a Supreme Court lawsuit over partisan gerrymandering. The court ruled that taking into account partisan advantage when redistributing is "not judiciable" in federal courts, leaving it to the states. From Wikipedia
