WASHINGTON (Reuters) - U.S. campaign finance watchdogs challenged the tax-exempt status on Wednesday of four political groups raising millions of dollars in largely unregulated money to influence elections, terming claims they promote social welfare "nonsense." (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=-gAVtPLy0XQ:vknDnVthrvE:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=-gAVtPLy0XQ:vknDnVthrvE:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/-gAVtPLy0XQ)
Reuters