Republican Party

The evangelical radio host recently made national news for leading an attack against Mitt Romney's openly gay national security spokesman, who later resigned. But Fischer's viewpoints on abortion, gay marriage, education and taxes have been influencing his listeners long before this.

What's the difference between primaries and caucuses, and why do states have different systems for choosing delegates? Political scientist Josh Putnam explains how delegates are picked, and how the process changed after the 1968 Democratic National Convention.

Newt Gingrich made a fortune from the businesses he started after leaving Congress in 1999. Washington Post reporter Karen Tumulty explains how Gingrich "transfigured himself from a political flameout into a thriving business conglomerate."

Rolling Stone political correspondent Tim Dickinson says the tax policies pursued by the Republican Party have benefited the top 1 percent of income earners. "The people at the very top of the income [bracket] are taking off like a rocket," he says.

Businessman Art Pope poured millions of dollars into state legislative campaigns during the 2010 campaign. Republicans went on to win 18 of the 22 campaign seats Pope and his organizations targeted. New Yorker writer Jane Mayer talks about Pope's growing power — and how his money may influence the 2012 presidential election.

Several apostles affiliated with the movement helped organize or spoke at Rick Perry's recent prayer rally. A leading apostle, C. Peter Wagner, talks about the movement and its missions, which include acquiring leadership positions in government, the media, and arts and entertainment.

Louisiana state Rep. Noble Ellington is the national chairman of ALEC, a membership-only group that brings together state legislators, interest groups and corporate representatives to draft model bills. He responds to a series of pieces about the organization recently published in The Nation.

A group called ALEC — the American Legislative Exchange Council — "is at the forefront of an effort to push business-friendly, conservative legislation at the state level," says reporter John Nichols. He discusses what recently leaked documents reveal about the organization.

In the Oct. 18 issue of The New Yorker, historian Sean Wilentz argues that the rhetoric expressed by both Glenn Beck and the Tea Party is nothing new -- and is rooted in an extremist ideology that has been around since the Cold War.

As campaign finance experts tell Fresh Air's Terry Gross, the Supreme Court's lifting of restrictions has led many interest groups to dramatically increase the number of ads they're airing.