Since the early 1980's right-wing religious fundamentalist organizations like The Moral Majority and Christian Coalition beat up on what they considered "moral lepers" for political gain:
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http://en.wikipedia.org/wiki/Moral_Majority
Moral Majority was initiated as a result of a struggle for control of an American conservative Christian advocacy group known as Christian Voice during 1978. During a news conference by Christian Voice's founder, Robert Grant, he claimed that the Religious Right was a "sham... controlled by three Catholics and a Jew." Paul Weyrich, Terry Dolan, Richard Viguerie and Howard Phillips left Christian Voice. During a 1979 meeting, they urged televangelist Jerry Falwell to found Moral Majority. This was also the beginning of the New Christian Right.[1][2]
Moral Majority was an organization made up of conservative Christian political action committees which campaigned on issues its personnel believed were important to maintaining its Christian conception of moral law, a conception they believed represented the opinions of the majority of Americans (hence the movement's name). With a membership of millions, the Moral Majority was one of the largest conservative lobby groups in the United States. During the 1980 presidential election, the Moral Majority is credited with giving Ronald Reagan two-thirds of the white evangelical vote, over Jimmy Carter.[3]
Some issues for which the Moral Majority campaigned included:[4]
The Moral Majority had adherents in the two major United States political parties, the Republicans and the Democrats, though it exercised far more influence on the former.
Falwell was the organization's best known spokesperson throughout the 1980s. By 1982, Moral Majority surpassed Christian Voice in size and influence. The organization dissolved officially in 1989[4] but lives on in the Christian Coalition network initiated by Pat Robertson.[5]
In 1981, a series of exposés (later nominated for the Pulitzer Prize) by Memphis reporter Mike Clark led to some condemning the interactions between the Moral Majority and the Republican Party.
In early October of 2007, Cal Thomas openly admitted on Fox News' popular show Hannity and Colmes that the marketing department of the Moral Majority would commonly discuss ways to demonize homosexuals (among others) in order to manipulate the public into following the Moral Majority's agenda.
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Republicans took advantage of this BS, and cloaked themselves as the party of morality, while portraying Democrats as being the ones supporting "godless child-molesting homosexuals." So nowadays, when the ones who used to present themselves as having superior morality are exposed as hypocrites, I do so.
To the extent that Gov. Spitzer is guilty of moral hypocrisy, then yes, he deserves a good excoriation. As I don't live in New York, I'm not all that familiar with his record, so I'll try to comment only on what I know.