* This is an updated version of a story that originally ran in 2011.

WASHINGTON (RNS) The atheist philosopher and novelist Ayn Rand published more than a dozen books before she died in 1982. Liberal Christians say another work belongs in Rand's controversial canon: the GOP budget authored by Rep. Paul Ryan, Mitt Romney's vice presidential pick.

Supporters say the drastic cuts in federal programs that are key to Ryan's plan -- which was passed by the House but died in the Senate -- are necessary to prevent a deficit crisis.

But in a petition drive, video, ads, and websites, liberal Christians countered that Rand's dog-eat-dog philosophy was the real inspiration behind the budget. Ryan, who has professed his admiration of Rand, was tapped by Romney as his vice presidential pick on Saturday.

"You've got a guy who is a rising Republican star, and who wrote the budget, saying he's read her books and Washington needs more of her values," said Eric Sapp, executive director of the American Values Network, which produced the video. "If you're a Christian, you've got to ask some serious questions about what's going on here."

In novels such as "Atlas Shrugged," the Russian-born Rand portrays American capitalists as heroes battling an encroaching government bent on milking their success. In nonfiction writings, Rand is more explicit about her Objectivist philosophy, which prizes individualism and regards religion as a "primitive" sop to the feeble-minded masses.

Tea Party Republicans have embraced Rand's writings, particularly "Atlas Shrugged," which some argue foretells the Great Recession and Washington's extraordinary efforts to end it. Rush Limbaugh, former Federal Reserve Chairman Alan Greenspan and Supreme Court Justice Clarence Thomas all call themselves Rand fans.

Biographer Anne C. Heller says Rand was raised a secular Jew in Russia at a time when Jews were persecuted by the Russian Orthodox Church. Early on, Rand decided that the existence of God and the Christian ideal of self-sacrifice were untenable ideas, Heller said.

"It must be either reason or faith," Rand said in a 1979 interview. "I am against God for the reason that I don't want to destroy reason." Rand saw her materialist philosophy and Christianity as incompatible and hoped to undermine Judeo-Christian ethics.

Rand's anti-religious views, however, are not as well known as her novels. By highlighting them, Sapp and liberal Christians hope to discredit the GOP budget, and drive a wedge between the conservative Christian and Tea Party wings of the Republican Party.

To that end, Sapp, who has directed faith outreach for a number of Democratic campaigns, promoted a video in which the late evangelical leader Chuck Colson warned Christians to beware of Rand's "idolatry of self and selfishness."

"I am no fan of big government, but there are far better ways to critique it than Rand's godless nonsense, especially for Christians" Colson says in the video.

More than 6,000 people signed a petition asking Ryan to put down Rand and pick up a Bible, according to Kristin Ford of Faithful America, a left-leaning online group.

"Ayn Rand's philosophy of radical selfishness and disdain for the poor and struggling is antithetical to our faith values of justice, compassion and the common good," the petition reads.

The American Values Network video, which Sapp said will be emailed to 1.2 million Christians in Wisconsin, opens with anti-religious remarks from Rand and segues into Republican leaders, including Ryan and Sen. Rand Paul, R-Ky., offering high praise of the Russian-American novelist.

"Rand, more than anyone else, did a fantastic job of explaining the morality of capitalism, the morality of individualism," Ryan says in a 2009 Facebook video excerpted in the ad. "It's that kind of thinking, that kind of writing that is sorely needed right now."

Ryan's spokesman, Kevin Seifert, said the Wisconsin Republican "does not find his Catholic faith to be incompatible with his feelings for Ayn Rand's literary works. ... Rand is one of many figures and authors that Congressman Ryan has cited as influencing his thinking during his formative years."

Seifert said that Ryan has not seen the ads, and so would not comment on them. Nor would Ryan offer an opinion on Rand's anti-religious statements. "It's not appropriate for him to speculate on an individual's personal religious views," Seifert said.

In a 2011 letter, Ryan sought to assure New York Archbishop Timothy Dolan, president of the U.S. Conference of Catholic Bishops, that the GOP budget aligns with Catholicism.

"Those who represent the people, including myself, have a moral obligation, implicit in the church's social teaching, to address difficult basic problems before they explode into social crisis," Ryan wrote in the April 29 letter.

Ryan argued that his budget is informed by the Catholic principal of subsidiarity, which holds that large bureaucracies should not assume tasks better left to individuals.

The GOP congressman also quotes the late Pope John Paul II's warning that government welfare programs can lead to inertia, overweening public agencies, and ballooning budgets.

Jay W. Richards, a Catholic and author of "Money, Greed and God: Why Capitalism is the Solution and Not the Problem," calls Ryan, like many Rand admirers, a "cafeteria Randian."

"I suspect the progressive Christians are confusing that point," he said. "You can agree with Rand's critique of collectivism as enervating and soul-destroying without adhering to her overarching philosophy."

But Heller, the biographer, isn't so sure.

"Certainly you can believe that the state can't do everything for everybody, but if you are a practicing Christian, you also believe that it is our duty to take care of the least among us," she said. "And we know perfectly well from history that churches and individuals can't do that job alone."