David Christensen, vice president of government affairs for the Family Research Council, a conservative group, said his organization is "glad that there's language in the tax bill to address the Johnson amendment" but added that it will probably need to be fixed.
"We think that this language may be entirely too narrow in the context of churches," Christensen said. "A newsletter, being on a radio program or a TV program, it's not clear to us if any type of campaign speech would be protected in that context."
Christensen said the Family Research Council would prefer to see the bill embrace the legislation introduced in February by House Majority Whip Steve Scalise, R-La., and Sen. James Lankford, R-Okla.
Their Free Speech Fairness Act would amend the tax code and allow charitable organizations to make statements relating to political campaigns if the comments are made in the ordinary course of the organization carrying out its tax-exempt purpose.
While some faith-based leaders and groups were disappointed in the GOP tax bill, advocates for the separation of church and state were livid about its inclusion.
"President Trump and House leadership are trying to change the tax code so they can pressure churches for endorsements, " said Maggie Garrett, legislative director for Americans United for Separation of Church and State. "They clearly want to use congregations as political tools for their own benefit."
Rabbi Jack Moline, president of the Interfaith Alliance, called the provision "political payback to the religious right for coming out in force to help elect President Trump in November."
Americans have mixed views about houses of worship delving into politics. A 2014 Pew Research poll found that almost 60 percent of Republicans thought churches should be able to express their political views, while 42 percent of Democrats agreed.
However, only 38 percent of Republicans and 28 percent of Democrats thought houses of worship should endorse political candidates.
A 2016 Pew poll of Americans who attended religious services found that 14 percent had heard clergy speak for or against one of the presidential candidates.
Nine percent of churchgoing Americans said they had heard clergy speak in favor of Democrat Hillary Clinton, while 1 percent said they had heard clergy speak favorably of Trump.
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