Question: Both Kathleen McGuire and Gavin Newsom are involved in politics in which state?

Context paragraphs:
Gavin Newsom: Gavin Christopher Newsom (born October 10, 1967) is an American politician and businessman who is the Lieutenant Governor of California since 2011, and former mayor of San Francisco.  He was a prominent early advocate for same-sex marriage and was influential in legalizing cannabis in California.

National Freedom to Marry Day: The most notable National Freedom to Marry Day was February 12, 2004 when, following a directive from San Francisco mayor Gavin Newsom to his county clerk, the City and County of San Francisco began issuing marriage licenses to same-sex couples.  On February 10, Newsom asked the clerk's office to make the changes on the "forms and documents used to apply for and issue marriage licenses…in order to provide [them] on a non –discriminatory basis."

William Newsom: William Alfred Newsom III (born February 15, 1934) is a retired state appeals court judge, administrator of the Getty family trust, and the father of former San Francisco Mayor and current Lieutenant Governor of California Gavin Newsom.

San Francisco mayoral election, 2003: The 2003 San Francisco mayoral election occurred on November 4, 2003.  The incumbent, Willie Brown, was termed out of office and could not seek a third term.  The general election included three top candidates including then Supervisor Gavin Newsom and then President of the Board of Supervisors, Matt Gonzalez and former Supervisor Angela Alioto.  No candidate received the required majority so the race went into a run-off of the two top candidates, which were Gavin Newsom and Matt Gonzalez.  The run-off occurred on December 9, 2003 where Gavin Newsom was elected mayor of San Francisco.

Michela Alioto-Pier: Michela Alioto-Pier (born 1968) served as a member of the San Francisco Board of Supervisors (2004–11).  She represented District 2, encompassing the Marina and Pacific Heights neighborhoods.  She previously served as a member of the San Francisco Port Commission.  She was appointed to the Board of Supervisors by Gavin Newsom after he was elected Mayor, in 2003.  Newsom himself was initially appointed to this seat by former Mayor Willie Brown.

Ed Lee (politician): Edwin Mah Lee (, born May 5, 1952) is an American politician and attorney who is the 43rd and current Mayor of San Francisco, California.  He was appointed by the Board of Supervisors on January 11, 2011 to serve out the remainder of former mayor Gavin Newsom's term, after Newsom resigned to take office as Lieutenant Governor of California.  Lee won the election on November 8, 2011 to serve a full term as Mayor.  He was re-elected in 2015.

Kathleen McGuire: Dr. Kathleen Alison McGuire (born in 1965 in Melbourne) is a choral and orchestral conductor, arranger, composer, music educator, vocalist and multi-instrumentalist.  Known also for her work with social justice and human rights organizations, from 2000 to 2010 she served as the first female artistic director and conductor of the San Francisco Gay Men's Chorus – the world's first openly gay choral organization – and in 2010 she established Singers of the Street: a choir of people affected by homelessness in San Francisco.  She became a US citizen in 2011 and in 2013 returned to Australia to serve as director of music at Queen's College (University of Melbourne) and co-artistic director of the School of Hard Knocks.  In 2006 she was a grand marshal in the San Francisco LGBT Pride Parade.  Her contributions have officially been recognized by the California Senate and State Assembly, and "Kathleen McGuire Day" was designated twice in her honor by San Francisco mayors Gavin Newsom (22 April 2010) and Edwin Lee (6 April 2013).

Mayoralty of Gavin Newsom: The Mayoralty of Gavin Newsom began when Democrat Gavin Newsom was elected Mayor of San Francisco in 2003, succeeding Willie Brown and becoming San Francisco's youngest mayor in a century.

Potrero Generating Station: On Dec. 21, 2010, San Francisco Mayor Gavin Newsom announced that the Potrero plant would cease operations by the end of the year.  In a press conference announcing the closure, Newsom stated that "this is a monumental step towards cleaner air, environmental justice and our future of renewable energy and healthier communities."  The plant was shut down in January 2011, and the property is being considered for redevelopment.

The Gavin Newsom Show: The Gavin Newsom Show was a weekly one-hour talk show hosted by the Lieutenant Governor of California, Gavin Newsom, and airing on San Francisco-based Current TV.  The show featured one-on-one interviews with notable residents of California, past guests including Marissa Mayer and Sergey Brin.

Supporting paragraphs: Kathleen McGuire Gavin Newsom
Answer: California