Question: The Gay Nigger Association of America trolled the politician who most recently served in what position?

Context paragraphs:
Tomás Ruiz González: Tomás José Ruiz González (born March 23, 1963) is a Mexican politician from the Institutional Revolutionary Party, who most recently served as a state government official in Veracruz under Governor Javier Duarte.  He previously served as director of the Mexican National Lottery and as president of the New Alliance Party (Nueva Alianza), a position he held from November 28, 2006 to August 28, 2007.

Sheila Kuehl: Sheila James Kuehl (born February 9, 1941) is an American politician and former child actor, currently the member of the Los Angeles County Board of Supervisors for the 3rd District.  In 1994, she became the first openly gay California legislator and in 1997, she was the first woman to be named Speaker pro Tempore in California.  Kuehl most recently served as a Democratic member of the California State Senate, representing the 23rd district in Los Angeles County and parts of southern Ventura County.  A former member of the California State Assembly, she was elected to the Senate in 2000 and served until December 2008.  She was elected to her supervisorial post in 2014.  In her capacity as Supervisor, she also sits on the Metro Board, First 5 LA, and is the County appointee to the South Coast Air Quality Management District.

Susan Castillo: Susan Castillo (born August 14, 1951) is a politician in the U.S. state of Oregon who most recently served as Superintendent of Public Instruction from 2003 to 2012.  A Democrat, she also served from 1997 to 2003 in the Oregon State Senate.  Before entering politics, she had pursued a career in broadcast journalism, first for Oregon Public Broadcasting, and later for KVAL-TV in Eugene, Oregon.  Upon her resignation as superintendent to pursue an opportunity in the private sector, the position was eliminated as an elective office.

GNAA (disambiguation): GNAA is the Gay Nigger Association of America, an Internet trolling organization.

Barack Obama: Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th President of the United States from 2009 to 2017.  He is the first African American to have served as president.  He previously served in the U.S. Senate representing Illinois from 2005 to 2008 and in the Illinois State Senate from 1997 to 2004.

Gay Nigger Association of America: The Gay Nigger Association of America (GNAA) is an Internet trolling organization.  They have trolled several prominent websites and Internet personalities including Slashdot, Wikipedia, CNN, Barack Obama's campaign website, Alex Jones, and prominent members of the blogosphere.  They have also released software products and leaked screenshots and information about upcoming operating systems.  In addition, they maintain a software repository and a wiki-based site dedicated to Internet commentary.  They are listed as a far right cyberterrorist organization in TRAC.

Goatse Security: Goatse Security (GoatSec) is a loose-knit, nine-person grey hat hacker group that specializes in uncovering security flaws.  It is a division of the anti-blogging Internet trolling organization known as the Gay Nigger Association of America (GNAA).  The group derives its name from the Goatse.cx shock site, and it chose "Gaping Holes Exposed" as its slogan.

Roberta Achtenberg: Roberta Achtenberg (born July 20, 1950) is an American politician.  She recently served as a Commissioner on the United States Commission on Civil Rights.  She served as Assistant Secretary of the U.S. Department of Housing and Urban Development, becoming the first openly lesbian or gay public official in the United States whose appointment to a federal position was confirmed by the United States Senate.

Luis Moscoso: Luís Saúl Moscoso (born May 13, 1950) is a Washington State Representative from the 1st Legislative District, Position 2.  He is a retired public servant having served 33 years in the public sector.  He most recently served as the Director of Government Relations for the Washington Public Employees Association/UFCW Local 365 in Olympia, Washington where he oversaw and coordinated the WPEA's Legislative-Political program and issues advocacy agendas.

Frank Fahrenkopf: Frank J. Fahrenkopf Jr. (born August 28, 1939) is an American lawyer, politician, and lobbyist who was chairman of the Republican National Committee from 1983 to 1989.  Fahrenkopf is co-founder, and currently co-chairman, of the Commission on Presidential Debates, which conducts the United States general election presidential and vice presidential debates.  In the private sector, Fahrenkopf most recently served as the American Gaming Association's first president, and retired from the position in 2013.

Supporting paragraphs: Gay Nigger Association of America Barack Obama
Answer: 44th President of the United States