Tan Duc Nguyen (born 1973) was a two-time candidate for the U.S. House of Representatives in California.
 In 2006, he ran as a Republican against incumbent Democrat Loretta Sanchez in California's 47th congressional district.
Jimmy Gomez (born November 25, 1974) is an American politician who is the current Member of the United States House of Representatives for California 's 34 congressional district .
 He previously served in the California State Assembly from 2012 to 2017.
 On June 6, 2017, he won an election to replace Xavier Becerra in Congress, which Becerra vacated to become California's Attorney General.
 On July 11, 2017, Gomez was officially sworn-in as a member of the United States House of Representatives.
Mark Andrew Green (born June 1, 1960) is an American politician and diplomat.
 He served in the Wisconsin State Assembly from 1993 to 1999, was a Republican member of the United States House of Representatives from 1999 to 2007, representing  's 8 congressional district , ran unsuccessfully for Governor of Wisconsin in 2006, and held the post of United States Ambassador to Tanzania from August 2007 until January 2009.
 Since 2014, he has served as president of the International Republican Institute, and sits on the board of directors of the Millennium Challenge Corporation.
 On May 10, 2017, President Donald Trump tapped Green to lead the United States Agency for International Development.
 Green was confirmed on August 3, and sworn in on August 7, 2017.
Christopher Harris "Kit" Williams (December 18, 1798 – November 27, 1857) was an American politician who represented Tennessee's United States House of Representatives, thirteenth and United States House of Representatives, eleventh districts in the United States House of Representatives.
Clarence William Nelson II (born September 29, 1942) is an American politician and a member of the Democratic Party who serves as the senior United States Senator from Florida, in office since 2001.
 Nelson began his career in the Florida House of Representatives, where he served from 1972 to 1978.
 He then served in the United States House of Representatives from 1979 to 1991.
 In January 1986, Nelson became the first sitting member of the United States House of Representatives to fly in space.
 He flew as a Payload Specialist on the Space Shuttle "Columbia".
Ronald D. "Ron" Slotin (born 1963/64) is an American politician from the state of Georgia.
 He served in the Georgia State Senate, opting not to run for reelection in 1996 so that he could run for the United States House of Representatives seat for Georgia 's 4 congressional district .
 He ran in the 2017 special election to represent Georgia 's 6 congressional district in the United States House of Representatives, but was unsuccessful.
Loretta L. Sánchez (born January 7, 1960) is an American politician who served in the United States House of Representatives from 1997 to 2017.
 She was first elected in 1996, when she defeated long-serving Republican congressman Bob Dornan by fewer than 1,000 votes.
 Sánchez represented the 46th district from 1997 to 2003, then California 's 47 congressional district from 2003 to 2013, and again in the 46th district from 2013 to 2017.
 The district lies in central Orange County.
 Since 1996, Sánchez has been a member of the Democratic Party, and of the centrist House Blue Dog Coalition.
Lori R. Saldaña (born November 7, 1958) is an American politician from San Diego, California.
 She is a former member of the California State Assembly from the 76th Assembly district (central San Diego).
 She served from 2004 to 2010, when term limits prevented her from seeking re-election.
 She served as a Democrat, but changed her party affiliation to "no preference" in 2014.
 She was a candidate in the 2012 election for the newly redrawn California's 52nd congressional district in the United States House of Representatives but lost in the primary to Scott Peters.
 She also ran for mayor of San Diego in 2016.
 (campaign website).
Bob Kunst (a.k.a. Robert Kunst) is one of America's leading human rights and civil rights activists, he is also known as an anti-Nazi and anti-KKK activist.
 Born in 1941, a native of Miami Beach, Florida, Kunst spent much of his adult life since the early 1960s in civil rights activism for African-Americans, Women, LGBT people, especially in the 1976 Miami-Dade County Ordinance for Gay Rights which was passed to protect the civil rights of Lesbians and Gays, and Bisexuals, and later Kunst was involved in activism for people with AIDS.
 Kunst was active to opposed Save Our Children, a Dade County, Florida voter-approved county initiative supported by singer Anita Bryant and her then-husband Bob Green, the initiative repealed the previous anti-discrimination ordinances Kunst fought for in employment, especially in public education teaching, and housing based on Sexual Orientation, but this law was eventually repealed by the state Supreme Court of Florida in 2010.
 Kunst later became more involved in Gay Rights activism in the United States ever since.
 As a Democratic Party politician, Kunst unsuccessfully campaigned against Republican Bob Graham in the 1986 United States Senate elections in Florida.
 Kunst also ran unsuccessfully in the 2010 United States House of Representatives Election, this time as an unaffiliated independent, against incumbent Rep. Debbie Wasserman Schultz, a Democrat, in the State of Florida.
 Kunst volunteered for the Hillary Rodham Clinton 2008 U.S. presidential campaign in his hometown of Miami, Florida.
 Kunst was president (1991-2001) of Shalom International, a Jewish group combating global Neo-Nazism and Neo-fascism movements.
 And he was a co-founder of the Oral Majority in 1982, the Liberal and secular counter-protest group of the Religious Right organizations Moral Majority and later the Christian Coalition.
 Outside of political causes, Kunst worked in marketing for the Miami Toros professional soccer team in the 1970s.
Anne Meagher Northup (born January 22, 1948) is an American Republican politician from the state of Kentucky.
 From 1997 to 2007, she represented the Louisville-centered 3rd congressional district of Kentucky in the United States House of Representatives, where she served on the powerful House Appropriations Committee.
 She lost reelection to Democratic politician John Yarmuth in the 2006 election.
 She then ran for governor, losing by 15 points to embattled Governor of Kentucky Ernie Fletcher in the Republican primary election for the 2007 Kentucky gubernatorial election.
 Prior to her election to the United States House of Representatives, Northup had served in the Kentucky House of Representatives.

Question: Who is the American politician who served in the United States House of Representatives from 1997 to 2017, that also ran in 2006 against Tan D. Nguyen? 
Answer: Loretta Sanchez