03/08/2012 08:51 am ET Updated May 08, 2012

Koch Brother, Cato Institute Legal Battle Could Test Non-Profit Law Limits

Merits of the case aside, though, the dispute could provide an interesting test of the limits of federal tax law relating to organizations like Cato -- a test that could have profound effects on the organization's fundraising, as well as the Kochs' ability to give money to it.

Read more on Kansas City Star