Question: What was the political party of the District of Columbia Mayor who approved the Golden Triangle business improvement district in 1997?

Context paragraphs:
Golden Triangle (Washington, D.C.): Golden Triangle, Washington DC is a neighborhood and business improvement district(BID) in Washington, D.C. Its location encompasses most of Washington’s central business district, and runs from the front yard of the White House north to Dupont Circle and from 16th Street to 21st Street NW and includes sections of K Street and Connecticut Avenue.  The Golden Triangle BID was created in 1997 by the District of Columbia City Council and approved by Mayor Marion Barry.  The commercial neighborhood that is home to more than 3,000 organizations such as top law firms, lobbyists, associations, and architecture firms; 200 restaurants; 300 shops and retailers; 7 hotels; and 6 national parks.  Through a special assessment collected from property owners in a 43-block area, the Golden Triangle BID promotes and supports this area of downtown Washington DC through a number of services that include an Ambassador program focusing on cleanliness and hospitality, homeless outreach, streetscape improvements, marketing, outdoor summer concerts and other events, member services and more.  Businesses that are located within the boundaries of the Golden Triangle BID are automatically members of the BID.  The BID is governed by a Board of Directors composed of twenty-four property and business owners.

Grand Central Partnership: The Grand Central Partnership manages the Grand Central Business Improvement District, one of the largest business improvement districts in the world, comprising 76000000 sqft of commercial space in a 70-block area of Midtown Manhattan with irregular borders reaching from East 35th Street to East 54th Street and from Second Avenue to Fifth Avenue.

Marion Barry: Marion Shepilov Barry (born Marion Barry Jr.; March 6, 1936 – November 23, 2014) was an American politician who served as the second Mayor of the District of Columbia from 1979 to 1991, and again as the fourth mayor from 1995 to 1999.  A Democrat, Barry had served three tenures on the Council of the District of Columbia, representing as an at-large member from 1975 to 1979 and in Ward 8 from 1993 to 1995, and again from 2005 to 2014.  In the 1960s he was involved in the Civil Rights Movement, first as a member of the Nashville Student Movement and then serving as the first chairman of the Student Nonviolent Coordinating Committee (SNCC).

New Orleans Downtown Development District: The Downtown Development District in New Orleans is a legal definition and entity originated in 1974, when the Louisiana Legislature created the New Orleans Downtown Development District, a business improvement district (BID) bordered by Iberville Street, the Pontchartrain Expressway, Claiborne Avenue, and the Mississippi River.

Capitol Riverfront: The Capitol Riverfront is a business improvement district (BID) located just south of the United States Capitol between Capitol Hill and the Anacostia River in Washington, D.C. It was created by the District of Columbia City Council and approved by Mayor Fenty in August 2007.  The BID is a mixed-use neighborhood.  It was a former industrial area that is being transformed into a business center, urban neighborhood, entertainment district and waterfront destination.  The project involves adding over 9,000 new apartments, condominiums and lofts, modern office towers, 1,200 hotel rooms, one million square feet of retail amenities including a two future grocery stores, new restaurants, shops, and cafes.  Over 33,900,000 square feet (3,150,000 m2) of new office, residential, hotel and retail space as well as four new parks are planned over the next 10–15 years.  The new 5 acre riverfront Yards Park opened in fall 2010.

Business improvement district: A business improvement district (BID) is a defined area within which businesses are required to pay an additional tax (or levy) in order to fund projects within the district's boundaries.  The BID is often funded primarily through the levy but can also draw on other public and private funding streams.  BIDs may go by other names, such as business improvement area (BIA), business revitalization zone (BRZ), community improvement district (CID), special services area (SSA), or special improvement district (SID).  These districts typically fund services which are perceived by some businesses as being inadequately performed by government with its existing tax revenues, such as cleaning streets, providing security, making capital improvements, construction of pedestrian and streetscape enhancements, and marketing the area.  The services provided by BIDs are supplemental to those already provided by the municipality.  The revenue derives from a tax assessment on commercial property owners, and in some cases, residential property owners.

Tourism improvement district: Tourism Improvement Districts (TIDs) are a type of business improvement district in the USA.  The aim of TIDs is increasing the number of overnight visitors using business and services in that area.  TIDs are formed through a public-private partnership between the local government and the businesses in a district.  TID funds are usually managed by a nonprofit corporation, generally a Convention and Visitors' Bureau, hotel association, or similar destination marketing organization.  Typical TID services include marketing programs to raise awareness of the destination, sponsorship of special events that attract overnight visitors, and sales programs to bring in large-group business.  Synonymous terms for TIDs include: tourism marketing district, hotel improvement district, and tourism business improvement district.

Riversdale Business Improvement District: The Riversdale Business Improvement District (RBID) is a Business Improvement District (BID) located in Saskatoon, Saskatchewan, Canada.  It was created through a City of Saskatoon by-law establishing it on February 12, 1990.  It is the largest BID is Saskatchewan containing 59 city blocks within its geographic foot print.  The boundaries of the Riversdale BID are Idylwyld Drive to the east, 22nd Street West to the north, Avenue P to the West and 17th Street and the South Saskatchewan River to the south.  Over the past years, the Riversdale BID has worked to improve economic activity within its borders and has recently.

St Giles, London: St Giles is a district of London, at the southern tip of the London Borough of Camden.  It was formerly the parish of St Giles in the Fields and the combined parishes of St Giles in the Fields and St George Bloomsbury formed the St Giles District of the Metropolis from 1855 to 1900.  It is the location of the church of St Giles in the Fields, the Phoenix Garden and St Giles Circus.  With Bloomsbury and Holborn, it is part of the "Midtown" business improvement district.

Bankside: Bankside is a district of London, England, and part of the London Borough of Southwark.  Bankside is located on the southern bank of the River Thames, 1.5 mi east of Charing Cross, running from a little west of Blackfriars Bridge to just a short distance before London Bridge at St Mary Overie Dock to the east which marks its distinct status from that of 'the Borough' district of Southwark.  It is part of a business improvement district known as Better Bankside.

Supporting paragraphs: Golden Triangle (Washington, D.C.) Marion Barry
Answer: Democrat