Interesting topic matter of a book published in 2002 by Gaines M. Foster entitled:
Moral Reconstruction:
Christian Lobbyists and the Federal Legislation of Morality, 1865-1920
It just goes to show that the federal government has been subject to religious lobbying for a long, long time.
And not much about it has changed...
The Christian lobby that formed in the late nineteenth century campaigned to expand the moral powers of the federal government and to establish the religious authority of the state. Some of the lobbyists believed the power of the government rested in God, but most sought only to force government to respect God's law and thereby prove itself worthy to exercise its powers. During the Civil War, the National Association to Amend the Constitution first lobbied to have an acknowledgment of God, Christ, and the authority of the Bible incorporated into the preamble to the Constitution. That crusade for what came to be called the Christian amendment continued after the war, because its proponents believed the nation owed allegiance to God. But they also thought the amendment would demonstrate the religious authority of the state and provide an unassailable constitutional basis for the federal legislation of morality.
...
The legislation of personal morality remained the primary goal of the reformers who made up the Christian lobby. Anthony Comstock lobbied for tougher federal laws against obscenity, birth control, and abortion in the early 1870s. Soon thereafter, his friend Joseph Cook, a Boston-based minister who earned his living on the lecture circuit, campaigned for laws against polygamy, Sabbath breaking, and other behavior he considered sinful. Henry Blair, a Republican senator from New Hampshire, first introduced a prohibition amendment in Congress in the 1870s and worked for a broad array of moral legislation, even after he left Congress. Blair became an ally and friend of Frances Willard, who, along with Comstock, was perhaps the best known of the Christian lobbyists. Far less well-known but important nonetheless was Wilbur J. Crafts, who founded the International Reform Bureau, proclaimed himself a Christian lobbyist, and opened an office on Capitol Hill in 1895.
...
The Christian lobbyists sometimes singled out immigrants and workers for special concern, which suggests that class interests helped fuel their fears, a factor historians have frequently cited in explaining postbellum moral reform. Several scholars portray reformers as members of the middle class who used standards of moral behavior to define themselves in opposition to both the upper and the working classes.