A conservative super PAC largely funded by the billionaire Koch brothers has pulled television ads in Indiana's Senate race attacking Democrat Joe Donnelly, but political strategists with the group will continue their plans to target the race.

Americans for Prosperity reserved airtime to assist Republican Richard Mourdock in the closely watched contest, where polling has shown it is a statistical tie. Last month, the group launched a website against Donnelly, highlighting his votes in Congress but reports say the super PAC has a disagreement over how to target the congressman.

From RTV6:

A source told RTV6's Norman Cox that the anti-Donnelly ads were canceled because of creative differences about the content, but that they will probably be remade and will air soon.

The Donnelly campaign unveiled its own online attack site Wednesday, which criticizes his Tea Party views.