In order to qualify and maintain 501 C 4 tax exempt status an organization must use at least 60% of its donations toward 'social welfare. Helping the poor...etc.,
However, this is not happening. Instead, they are funneling millions of dollars into the Republican Party. Of course, this is a clear violation of their tax exempt status, and a misuse of the status.
1). Cenk Uygur. (4 April 2014). The Dark Money Of 'Social Welfare' Groups Is The Real IRS Scandal. The Young Turks.https://www.youtube.com/watch?v=tTEdQNiRxQk