Press reports indicate that her group was asked how often it prays and whether it considers these prayers to be "educational," and that the IRS pressured the group to limit its advocacy against Planned Parenthood.


John Eastman of the National Organization for Marriage, which opposes gay marriage, will also testify. NOM has sued the IRS for leaking confidential information about their donors last year.

Representatives of four other Tea Party groups will also testify — each of them has joined a lawsuit against the IRS filed by the American Center for Law and Justice. The suit, filed on Thursday on behalf of about two dozen groups, argues that the IRS illegally delayed their applications for tax-exempt status.

These groups are the Laurens County Tea Party of South Carolina, the Wetumpka Tea Party of Alabama, the San Fernando Valley Patriots of California, and Linchpins of Liberty in Tennesee.

The IRS has admitted that it applied extra scrutiny to groups seeking tax-exempt status when they had conservative-sounding names, such as those that included "Tea Party" or "liberty." At the same time, applications filed by left-leaning groups were approved as usual, according to experts in the process.