For the past three years, the Internal Revenue Service hasn't been investigating complaints of partisan political activity by churches, leaving religious groups who make direct or thinly veiled endorsements of political candidates unchallenged.

The IRS monitors religious and other nonprofits on everything from salaries to spending, and that oversight continues. However, Russell Renwicks, a manager in the IRS Mid-Atlantic region, recently said the agency had suspended audits of churches suspected of breaching federal restrictions on political activity. A 2009 federal court ruling required the IRS to clarify which high-ranking official could authorize audits over the tax code's political rules. The IRS has yet to do so.

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