Question: The 22nd, 24th and 28th Presidents of the United States were members of which mainstream political party?
Context: The 6th Presidents Cup was held between September 22 and 25, 2005.  It was played at the Robert Trent Jones Golf Club in Gainesville, Virginia, United States.  The United States team won the competition by a margin of 18½–15½.  The honorary chairmen was former President of the United States George H. W. Bush. Thomas Woodrow Wilson (December 28, 1856 – February 3, 1924) was an American politician and academic who served as the 28th President of the United States from 1913 to 1921.  A member of the Democratic Party, Wilson served as the President of Princeton University from 1902 to 1910 and then ran and was elected as a progressive Democrat to the office of Governor of New Jersey.  Wilson's victory in the 1912 presidential election made him the first Southerner elected to the presidency since Zachary Taylor in 1848.  He also led the United States during World War I, establishing an activist foreign policy known as "Wilsonianism."  He was a major leader at the Paris [Versailles] Peace Conference in 1919, where he championed the proposed League of Nations.  However, he was unable to obtain Senate approval for U.S. membership.  After he suffered debilitating strokes in September 1919, his wife and staff members handled most of his presidential duties. The 5th Presidents Cup was held 20–23 November 2003 at the Links Course at Fancourt Hotel and Country Club in George, Western Cape, South Africa.  The United States and International team tied the competition 17-17, and after three tied playoff holes between Tiger Woods and Ernie Els it was decided that the Cup would be shared by agreement of the captains and players.  The honorary chairman was South African President Thabo Mbeki. The 8th Presidents Cup was held October 8–11, 2009 at the Harding Park Golf Club in San Francisco, California.  The United States team won the golf competition by a margin of 19½–14½, their second consecutive win by that exact score and third in a row overall.  This was also the sixth outright win for the U.S. Team in eight meetings, with one International win in 1998 and one tied match in 2003. The INF's Americas region includes North America, South America, Central America and the Caribbean.  The region covers 54 nations, of which 13 have national governing bodies.  Each year, the region hosts two tournaments: the CNA U16 Championship and the AFNA Senior Championship.  Netball is most popular in Commonwealth countries, such as Antigua and Barbuda and Grenada.  As of August 2016, several teams in the region ranked amongst the top thirty-five in the world, including Jamaica (4th), Trinidad & Tobago (9th) Barbados (13th), Canada (18th), Grenada (22nd), Saint Lucia (24th), the United States of America (28th) and Argentina (35th). The 2nd Battalion, 28th Marine Regiment (2nd Battalion, 28th Marines) is an infantry battalion of the United States Marine Corps.  The battalion (inactive since the Vietnam War) which is part of the 28th Marine Regiment, 5th Marine Division, fought in the Battle of Iwo Jima during World War II.  Six Marines of E Company, 2nd Battalion, 28th Marines were featured in the historical photo by Joe Rosenthal of the U.S. flag raising on top of Mount Suribachi. The Electoral (Amendment) Act, 1980 (No. 17/1980) was a law in Ireland which provided for parliamentary constituencies in the 22nd Dáil (1981–82), 23rd Dáil (February–November 1982) and the 24th Dáil (1982–87).  The 22nd Dáil Éireann was elected at the 1981 general election on 11 June 1981, the 26th Dáil was elected at the February 1982 general election on 18 February 1982, and the 26th Dáil was elected at the November 1982 general election on 24 November 1982. The 7th Presidents Cup was held in 2007 between September 27 and 30.  It was played at the Royal Montreal Golf Club in Île Bizard, Quebec, Canada.  The United States team won the competition by a margin of 19½–14½. Stephen Grover Cleveland (March 18, 1837June 24, 1908) was an American politician and lawyer who was the 22nd and 24th President of the United States, the only President in American history to serve two non-consecutive terms in office (188589 and 189397).  He won the popular vote for three presidential electionsin 1884, 1888, and 1892and was one of two Democrats (with Woodrow Wilson) to be elected president during the era of Republican political domination dating from 1861 to 1933. The 4th Presidents Cup was held between October 19 and 22, 2000.  It was played at the Robert Trent Jones Golf Club in Gainesville, Virginia, U.S.  The United States team won the competition by a margin of 21½–10½.  The honorary chairman was American President Bill Clinton.
Answer: Democratic Party