By Todd Beamon
Article Reprint
The Obama administration moved on Tuesday to rein in the use of tax-exempt groups for political campaigning.
The effort is an attempt to reduce the role of such loosely regulated yet influential super PACS as Crossroads GPS, which was co-founded by GOP political strategist Karl Rove, and Priorities USA, which ran searing ads against rivals of President Barack Obama to support his re-election last year.