2006 United States Senate election in Arizona

Richard Ivan Mack is the former sheriff of Graham County, Arizona and a political activist. He is known for his role in a successful lawsuit brought against the federal government of the United States which alleged that portions of the Brady Handgun Violence Prevention Act violated the United States Constitution. He is a former lobbyist for Gun Owners of America (GOA) and a two-time candidate for United States Congress. Mack is also the founder of Constitutional Sheriffs and Peace Officers Association (CSPOA), and established the "County Sheriff Project" movement, both of whom reaffirm what they claim is the constitutional power to refuse to enforce federal laws. Further to this, he sits on the board of directors of the Oath Keepers, a far-right militia group.

Graham County is a county in the southeastern part of the U.S. state of Arizona. As of the 2020 census, the population was 38,533, making it the third-least populous county in Arizona. The county seat is Safford.

The Graham County Sheriff's Office (GCSO) is a local law enforcement agency that serves Graham County, Arizona. It provides general-service law enforcement to unincorporated areas of Graham County, serving as the equivalent of the police for unincorporated areas of the county. It also operates the county jail system and the 24/7 countywide 911 communications center. The Graham County Sheriff's Office is sometimes referred to as the Graham County Sheriff's Department (GCSD).

The Arizona Libertarian Party (AZLP) is the Arizona affiliate of the national Libertarian Party (LP) and has been active since its foundation on October 7, 1972.

Jon Llewellyn Kyl is an American politician and lobbyist who served as a United States Senator for Arizona from 1995 to 2013 and again in 2018. A Republican, he held both of Arizona's Senate seats at different times, serving alongside John McCain during his first stint. Kyl was Senate Minority Whip from 2007 until 2013. He first joined the lobbying firm Covington & Burling after retiring in 2013, then rejoined in 2019.

Richard Ivan Mack is the former sheriff of Graham County, Arizona and a political activist. He is known for his role in a successful lawsuit brought against the federal government of the United States which alleged that portions of the Brady Handgun Violence Prevention Act violated the United States Constitution. He is a former lobbyist for Gun Owners of America (GOA) and a two-time candidate for United States Congress. Mack is also the founder of Constitutional Sheriffs and Peace Officers Association (CSPOA), and established the "County Sheriff Project" movement, both of whom reaffirm what they claim is the constitutional power to refuse to enforce federal laws. Further to this, he sits on the board of directors of the Oath Keepers, a far-right militia group.

Graham County is a county in the southeastern part of the U.S. state of Arizona. As of the 2020 census, the population was 38,533, making it the third-least populous county in Arizona. The county seat is Safford.

The Graham County Sheriff's Office (GCSO) is a local law enforcement agency that serves Graham County, Arizona. It provides general-service law enforcement to unincorporated areas of Graham County, serving as the equivalent of the police for unincorporated areas of the county. It also operates the county jail system and the 24/7 countywide 911 communications center. The Graham County Sheriff's Office is sometimes referred to as the Graham County Sheriff's Department (GCSD).

Janet Ann Napolitano is an American politician, lawyer, and university administrator who served as the 21st governor of Arizona from 2003 to 2009 and third United States secretary of homeland security from 2009 to 2013, under President Barack Obama. She was named president of the University of California system in September 2013, and stepped down from that position on August 1, 2020 to join the faculty at the Goldman School of Public Policy. She was elected to the American Philosophical Society in 2018.

The governor of Arizona is the head of government of the U.S. state of Arizona. As the top elected official, the governor is the head of the executive branch of the Arizona state government and is charged with faithfully executing state laws. The governor has the power to either approve or veto bills passed by the Arizona State Legislature; to convene the legislature; and to grant pardons, except in cases of impeachment. The governor is also the commander-in-chief of the state's military forces.

Hurricane Katrina was a devastating Category 5 Atlantic hurricane that resulted in 1,392 fatalities and caused damage estimated between $97.4 billion to $145.5 billion in late August 2005, particularly in the city of New Orleans and its surrounding areas. At the time, it was the costliest tropical cyclone on record, tied now with Hurricane Harvey of 2017. Katrina was the twelfth tropical cyclone, the fifth hurricane, and the third major hurricane of the 2005 Atlantic hurricane season. It was also the fourth-most intense Atlantic hurricane on record to make landfall in the contiguous United States.

The Democratic National Committee (DNC) is the governing body of the United States Democratic Party. The committee coordinates strategy to support Democratic Party candidates throughout the country for local, state, and national office, as well as works to establish a "party brand". It organizes the Democratic National Convention held every four years to nominate a candidate for President of the United States and to formulate the party platform. While it provides support for party candidates, it does not have direct authority over elected officials. When a Democrat is president, the White House controls the Committee. According to Boris Heersink, "political scientists have traditionally described the parties’ national committees as inconsequential but impartial service providers."

Casa Grande is a city in Pinal County, approximately halfway between Phoenix and Tucson in the U.S. state of Arizona. According to U.S. Census estimates, the population of the city is 55,653 as of 2020. It is named after the Casa Grande Ruins National Monument, which is actually located in Coolidge. "Casa Grande" is Spanish for "big house". Among resident English speakers, there is no consensus on how to pronounce the city's name.

William Jefferson Clinton is an American politician who served as the 42nd president of the United States from 1993 to 2001. He previously served as governor of Arkansas from 1979 to 1981 and again from 1983 to 1992, and as attorney general of Arkansas from 1977 to 1979. A member of the Democratic Party, Clinton became known as a New Democrat, as many of his policies reflected a centrist "Third Way" political philosophy. He is the husband of Hillary Clinton, who was a U.S. senator from New York from 2001 to 2009, secretary of state from 2009 to 2013 and the Democratic nominee for president in the 2016 presidential election.

Phoenix is the capital and most populous city of the U.S. state of Arizona, with 1,608,139 residents as of 2020. It is the fifth most populous city in the United States, the most populous state capital in the country, and the only U.S. state capital with a population of more than one million residents.