As usual, a lot of bellyaching backed up by ignorance.
This issue is over requests for additional information from groups applying for a tax exempt status that specifically excludes political groups, like the Tea Party an affiliate political groups.
It's not at all inappropriate for these groups claiming affiliation with a political organization to be asked to provide additional information before being granted this particular tax exempt status. It's ridiculous to say otherwise.
If your job is to screen out inappropriate applications for tax exempt status that only non-political social welfare organizations are eligible for, who are you more likely to want more information from: Saint Jude's Orphanage or the Richmond Tea Party?
The only way we'll be able to tell if anything was actually targeting "conservative" groups as a form of political attack would be for us to see the list of applications and know what the standard procedure (if any) there is for choosing which to follow up on.