2006 United States House of Representatives election in Delaware

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.

Michael Newbold Castle is an American lawyer and politician who was governor of Delaware (1985–92) and the U.S. representative for Delaware's at-large congressional district (1993–2011). He is a member of the Republican Party.

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 Independent Party of Delaware (IPoD) is a political party in the State of Delaware, United States. As of March 2021, it is the third largest political party in Delaware with 9,443 registered voters. The preamble outlines the party's goals: "The Independent Party of Delaware is dedicated to reform of government at all levels in the Greater Public Interest through election of independent alternative candidates". The party supports laissez-faire capitalism, limited government, and environmentalism. It was officially formed on August 29, 2000, for the stated purpose of providing Delaware voters with an alternative to the Republican and Democratic parties. The party works to support independent candidates for public office by providing them with ballot access, distributing information to voters, and encouraging participation in candidate debates.

Michael Berg is an American activist and politician who was a candidate for the United States House of Representatives in the State of Delaware on the Green Party ticket in the 2006 midterm elections. He is most well known as the father of Nick Berg, one of the first American civilians to be abducted and beheaded by insurgents in Iraq.