After the 2002 Bipartisan Campaign Reform Act was passed, which new form of tax-exempt organizations first made a major impact in the 2003–2004 election cycle by encouraging voter registration and running issue ads aimed at energizing supporters?

527

Explanation:

Bipartisan Campaign Reform Act is the law that was made in the United States to amend the federal Election Campaign Act of 1971, that regulates the financing of political campaign. This amendment was made in 2002. This act is also known as McCain - Feingold Act.

It should be understood that, the act was designed or made to prevent or end the use of soft money for the activity that can affect federal election in the United States. It also sought to curb issue advocacy advertising.

This is because, before the amendment of the Federal Election Campaign Act of 1971 in 2002, interest groups and corporations were allowed to donate vast amounts of soft money to the political parties sympathetic to their ideals rather than to a candidate directly.

In summary, the  527 group or organization is created or implemented to primarily influence the selection, nomination, election, appointment or defeat of candidates to federal, state or local public office.

answer; being clearly political;