2006 United States House of Representatives elections in Idaho

The Idaho Republican Party (IDGOP) is the Idaho state affiliate of the United States Republican Party, headquartered in Boise. It is currently the dominant party in the state, controlling both of Idaho's U.S. House seats, both U.S. Senate seats, the governorship, and has supermajorities in both houses of the state legislature.

The Idaho Democratic Party is the affiliate of the Democratic Party in the U.S. state of Idaho.

The Idaho Panhandle—locally known as North Idaho—is a salient region of the U.S. state of Idaho encompassing the state's 10 northernmost counties: Benewah, Bonner, Boundary, Clearwater, Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone. The Panhandle is bordered by the state of Washington to the west, Montana to the east, and the Canadian province of British Columbia to the north. The Idaho panhandle, along with Eastern Washington, makes up the region known as the Inland Northwest, headed by its largest city, Spokane, Washington.

The Boise–Nampa, Idaho Metropolitan Statistical Area (MSA) is an area that encompasses Ada, Boise, Canyon, Gem, and Owyhee counties in southwestern Idaho, anchored by the cities of Boise and Nampa. It is the main component of the wider Boise–Mountain Home–Ontario, ID–OR Combined Statistical Area, which adds Elmore and Payette counties in Idaho and Malheur County, Oregon. It is the state's largest officially designated metropolitan area and includes Idaho's three largest cities: Boise, Nampa, and Meridian. Nearly 40 percent of Idaho's total population lives in the area.

William Thomas Sali is an American lawyer and politician who served as a congressman from Idaho. A Republican, he served a single term in the United States House of Representatives, representing Idaho's 1st congressional district from 2007 to 2009. Sali previously served in the Idaho Legislature as a member of the House.

Idaho is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyoming to the east, Nevada and Utah to the south, and Washington and Oregon to the west. The state's capital and largest city is Boise. With an area of 83,570 square miles (216,400 km2), Idaho is the 14th largest state by land area, but with a population of approximately 1.8 million, it ranks as the 13th least populous and the 7th least densely populated of the 50 U.S. states.

The Idaho Legislature consists of the upper Idaho Senate and the lower Idaho House of Representatives. Idaho is divided into 35 legislative districts, which each elect one senator and two representatives. There are no term limits for either chamber.

The Idaho House of Representatives is the lower chamber of the Idaho State Legislature. It consists of 70 representatives elected to two-year terms. The state is divided into 35 districts, each of which elects two representatives to separate seats. It meets at the Idaho State Capitol in Boise, Idaho, in the State Capitol Building.

Canyon County is located in the U.S. state of Idaho. As of the 2020 Census, the population was 231,105, making it the second-most populous county in Idaho. The county seat is Caldwell, and its largest city is Nampa. Canyon County is part of the Boise metropolitan area.

The Republican Party, also referred to as the GOP, is one of the two major contemporary political parties in the United States. The GOP was founded in 1854 by anti-slavery activists who opposed the Kansas–Nebraska Act, which allowed for the potential expansion of chattel slavery into the western territories. It has been the main political rival of the Democratic Party since the mid-1850s. Like them, the Republican Party is a big tent of competing and often opposing ideologies. Presently, the Republican Party contains prominent conservative, centrist, populist, and right-libertarian factions.

Eastern Idaho is the area of Idaho lying east of the Magic Valley region. It is generally understood to include: Bannock, Bear Lake, Bingham, Bonneville, Butte, Caribou, Clark, Custer, Franklin, Fremont, Jefferson, Madison, Oneida, Power and Teton Counties. Much of the region is in the Mormon Corridor, and the Church of Jesus Christ of Latter-day Saints plays a major role in the lives of the region's residents.

The Magic Valley is a region in south-central Idaho constituting Blaine, Camas, Cassia, Gooding, Jerome, Lincoln, Minidoka, and Twin Falls counties. It is particularly associated with the agricultural region in the Snake River Plain located in the area. The northern Magic Valley region — particularly Blaine and Camas Counties — is also known as the Wood River Valley after the Big Wood River.

Boise is the capital and most populous city of the U.S. state of Idaho and is the county seat of Ada County. As of the 2020 census, there were 235,684 people residing in the city. On the Boise River in southwestern Idaho, it is 41 miles (66 km) east of the Oregon border and 110 miles (177 km) north of the Nevada border. The downtown area's elevation is 2,704 feet (824 m) above sea level.

Michael Keith Simpson is an American politician and former dentist serving as the U.S. representative for Idaho's 2nd congressional district since 1999. The district covers most of the eastern portion of the state, including Idaho Falls, Pocatello, Sun Valley, Twin Falls and the northern two-thirds of Boise.

The Republican Party, also referred to as the GOP, is one of the two major contemporary political parties in the United States. The GOP was founded in 1854 by anti-slavery activists who opposed the Kansas–Nebraska Act, which allowed for the potential expansion of chattel slavery into the western territories. It has been the main political rival of the Democratic Party since the mid-1850s. Like them, the Republican Party is a big tent of competing and often opposing ideologies. Presently, the Republican Party contains prominent conservative, centrist, populist, and right-libertarian factions.

The Democratic Party is one of two major contemporary political parties in the United States. Founded in 1828, it was predominantly built by Martin Van Buren, who assembled politicians in every state behind war hero Andrew Jackson, making it the world's oldest active political party. Its main political rival has been the Republican Party since the 1850s, with both parties being big tents of competing and often opposing viewpoints. Modern American liberalism — a variant of social liberalism — is the party's majority ideology. The party also has notable centrist, social democratic, and left-libertarian factions.

The Constitution Party, formerly the U.S. Taxpayers' Party until 1999, is a political party in the United States that promotes a religious conservative view of the principles and intents of the United States Constitution. The party platform is based on originalist interpretations of the Constitution and shaped by principles which it believes were set forth in the Declaration of Independence, the Bill of Rights, the Constitution and the Bible.