Two Tea Party groups in South Carolina say they were singled out by Internal Revenue Service employees for intense and sometimes inappropriate scrutiny.
An inspector general's report says conservative groups were screened for "political-sounding" names.
Laurens County Tea Party chair Diane Belsom said she thought some of the requests intrusive, including a list of comments on the group's Facebook page.
Belsom said she first filed for nonprofit status in 2010 and was finally asked to submit the information last year but says she still has not heard back.
Myrtle Beach Tea Party chairman Joe Dugan says his organization had to go through similar hurdles and has also not heard back.
In a statement late Tuesday, the IRS contended that it didn’t act out of any political bias, saying the cases included organizations of all political views.
President Obama said Wednesday that he had accepted the resignation of the IRS's acting director.