The Internal Revenue Service (IRS) has cleared the United Church of Christ (UCC), concluding that the denomination did not violate the section 501(c)(3) ban on political campaign intervention when Senator Barack Obama (D-IL) addressed its national meeting in June 2007. In February the UCC publicly announced that the IRS was investigating whether Obama's speech, while he was already a presidential candidate, violated restrictions on political activity of 501(c)(3) groups. Based on the church's response to its inquiry, the IRS found that the activity was not intervention or participation.

Pastor Wiley Drake of First Southern Baptist Church in Buena Park, CA has reportedly been cleared by the Internal Revenue Service (IRS) of allegations that he violated the ban on election intervention. Drake made it public that he was being investigated by the IRS in February for endorsing presidential candidate Mike Huckabee in a press release on his church's letterhead and on his radio program.

The Internal Revenue Service (IRS) will be holding a free phone forum on Rules for Tax-Exempt Organizations During An Election Year. The Forum is scheduled for June 9, 2008, and will be repeated the following day. Space is limited and will be reserved on a first-come basis, and organizations may register as a group. According to the IRS, the forum will discuss the distinctions between political activity, lobbying and general advocacy, and which activities are permissible by 501(c)(3) charities, 501(c)(4) social welfare organizations, 501(c)(5), 501(c)(6), and 527 political organizations.

The Alliance Defense Fund (ADF), an Arizona nonprofit, has started an effort to encourage ministers to "use their pulpits to preach about election candidates this September." 501(c)(3) nonprofits, including churches, are prohibited from endorsing or publicly opposing political candidates or intervening in candidates' elections. The group would like if one sermon prompts an Internal Revenue Service (IRS) investigation that becomes a court battle, leading towards an outcome ruling the tax provision unconstitutional.