Question: In 2010 Richard Jason Satawk "R. J." Harris unsuccessfully challenged a member of what nation for the Republican Party nomination in the primary election for Oklahoma's 4th congressional district?

Context paragraphs:
Tom Cole: Thomas Jeffery Cole (born April 28, 1949) is the U.S. Representative for Oklahoma 's 4 congressional district , serving since 2003.  He is a member of the Republican Party.  He is a Deputy Majority Whip.  The chairman of the National Republican Congressional Committee (NRCC) from 2006 to 2008, he was, during his tenure, the fourth-ranking Republican leader in the House.  As of 2015, Cole – a member of the Chickasaw Nation – is one of only two registered Native Americans in Congress (the other being fellow Oklahoman Markwayne Mullin).

R. J. Harris: Richard Jason Satawk "R. J." Harris (born November 16, 1972) is a United States Army National Guard warrant officer, politician, law student and former Air Traffic Controller.  He was a candidate for the Libertarian Party's 2012 nomination for President of the United States.  In 2010, he unsuccessfully challenged incumbent Tom Cole for the Republican Party nomination in the primary election for Oklahoma's 4th congressional district.  He ran as an independent candidate for the same congressional seat in 2012.

Rico Oller: Thomas "Rico" Oller (born July 16, 1958) is a Republican U.S. politician from California.  He served in the California State Assembly, representing the 4th District from 1996 to 2000, and the California State Senate, representing the 1st district from 2000 to 2004.  In 2004, Oller ran for Congress in California's 3rd congressional district, but narrowly lost the Republican primary to former California Attorney General Dan Lungren.  On January 10, 2008, Oller again ran for Congress, this time in California's 4th congressional district, for a seat being vacated by retiring Congressman John Doolittle.  He faced opposition from former Congressman Doug Ose.  On March 4, 2008, Oller dropped out of the race when California State Senator Tom McClintock (R-Thousand Oaks) announced that he was running for Doolittle's seat.  In a statement, Oller said his decision was "a bitter pill indeed for me to swallow."  But, he said he was endorsing McClintock to prevent the election of Ose, whom he labeled as "an unarguably liberal Republican."  Oller ran for the newly former 5th Assembly District in 2012 facing Madera County Supervisor Frank Bigelow in the November general election.  Oller lost to Bigelow by 5.7%.

Ken Boyd (politician): Kenneth C. Boyd is a member of the Albemarle County, Virginia Board of Supervisors.  He ran unsuccessfully for the Republican Party nomination in Virginia's fifth congressional district to challenge incumbent Congressman Tom Perriello in the 2010 congressional elections.  During the race, he stated that he did not anticipate running for a third term on the Board of Supervisors.  Despite this, he won a third term following a hard fought campaign.  He has been noted for his strong support of developers and sprawling developments on the Board.  He represents the Rivanna Magisterial District.  His current term ends in 2015.

Dick Muri: Richard Walter "Dick" Muri (born November 30, 1953) is an American politician of the Republican Party.  He is a member of the Washington House of Representatives, representing the 28th legislative district.  Muri was appointed to the Washington State House of Representatives following (now former) State Representative Steve O'Ban's appointment to the Washington State Senate after State Senator Mike Carrell's death.  From 2003 to 2012, he served as a Republican member of the Pierce County Council, representing the 6th District.  In 2010, he ran as a Republican candidate for U.S. Congress in Washington's 9th congressional district against incumbent Democratic Congressman Adam Smith, eventually losing to Smith by nearly 10 points.  In 2012, he again ran, this time in Washington's 10th congressional district against Denny Heck, losing by 17 points.

Tim Burns (businessman): Timothy Richard "Tim" Burns (born April 14, 1968) is a Pennsylvania businessman.  He ran as a Republican in the 2010 special election to represent Western Pennsylvania's 12th congressional district in the U.S. House of Representatives.  Burns won the party nomination but lost the November general election to Democratic incumbent Mark Critz.  From mid-October 2011 until ending his campaign in early February 2012, Burns was a candidate for the Republican nomination for United States Senate to challenge incumbent Senator Bob Casey, Jr. in the 2012 election.

Brian Moore (political activist): Brian Patrick Moore (born June 8, 1943) is an American politician and founder of antiwar organization Nature Coast Coalition for Peace & Justice.  He was the presidential nominee of the Socialist Party USA for the 2008 United States presidential election.  He waged several campaigns for mayor and city council in Washington, D.C. and twice ran for the United States House of Representatives from Florida's 5th congressional district, winning none.  He ran for the Democratic Party nomination for Governor of Florida in 2010, but lost in the primary election.

Stephen Freind: Stephen F. Freind (born 1944) is a Republican politician who served in the Pennsylvania General Assembly as the state representative for Delaware County from 1976 until 1993, when he unsuccessfully challenged Arlen Specter in the 1992 Republican primary election.  He was most notable for authoring a law that was presented as a tort reform measure but was actually designed to restrict abortion rights, that included "requirements that a married woman notify her husband, that there be a 24-hour wait before any abortion, and that doctors show patients a pamphlet with pictures of developing fetuses".  It was mostly upheld by the Supreme Court of the United States except for the spousal notification provision in the case of "Planned Parenthood v. Casey".

Mark M. Gillen: Mark M. Gillen (born November 6, 1955) is an American politician and member of the Republican Party.  In 2010, he was elected to represent the 128th District in the Pennsylvania House of Representatives.  The seat had been vacated by Republican Sam Rohrer, who had unsuccessfully challenged State Attorney General Tom Corbett in the May 2010 Republican gubernatorial primary.  Gillen is currently serving on the Aging and Older Adult Services, Education, Labor and Industry, and Veterans Affairs and Emergency Preparedness committees.

Mike Huckleberry: Michael "Huck" Huckleberry (born July 12, 1948) is a politician, restaurateur, and small business owner from Greenville, Michigan.  In 2008, he was elected as a Democrat to the Michigan State House of Representatives.  He represented the 70th House District, which includes all of Montcalm County and a portion of North-west Ionia County including the city of Ionia.  In 2006 he unsuccessfully challenged incumbent Republican Congressman Dave Camp, who represents Michigan's 4th congressional district, located in central Michigan.  In 2010 he was defeated by Rick Outman, 55%-43%.

Supporting paragraphs: R. J. Harris Tom Cole
Answer: Chickasaw Nation