Why would democrats go out for revenge against Republican political groups wanting tax-exempt status.

Why would Republicans, out for revenge against Democrats who seem to have been biased in granting or not granting tax-exempt status.

I have to list a lot of points under each but I can even think of three...can u help me start a bit of brainstorming please...
Thanks.

The Democrats claim that some of these Republican groups should not have tax exempt status because they had mainly political not charitable goals. The Republicans have denied this and claim that the IRS was showing bias against these Republican groups.

Read, read, read!

http://www.google.com/webhp?source=search_app#sclient=psy-ab&q=IRS+Tea+Party&oq=IRS+Tea+Party&gs_l=serp.3..0i22i30l4.257470.263744.0.264461.13.8.0.5.5.0.192.952.4j4.8.0...0.0.0..1c.1.12.psy-ab.L0N7wPynuMU&pbx=1&bav=on.2,or.r_qf.&fp=b2533e6031fdac59&biw=711&bih=453