Super-PAC cuts off Lugar in Indiana

The American Action Network, a super-PAC that backs establishment Republicans, has pulled out of Indiana's Senate race, the latest bad omen for Sen. Richard Lugar (R-Ind.).

"We've decided we're going to let this race play out," AAN spokesman Dan Conston told The Hill Friday evening.

The group had committed to spending nearly $600,000 on television attacking Lugar's Tea Party opponent, Indiana state Treasurer Richard Mourdock (R), and has been on the air in Indianapolis for two weeks. But they have pulled their online advertising and will end their TV buy on Tuesday, a week ahead of the May 8 primary.

Lugar still has a big warchest to draw from, so the loss of ads against Mourdock won't hurt him that badly in the air war. But this is the latest sign that the race is slipping away from the six-term senator, who has been badly damaged after it was revealed he's lived in Washington, D.C. for decades and is a top target of many conservative groups.

The race seems to be slipping away from Lugar and the American Action Network may want to avoid inflicting any more damage on Mourdock, the likely nominee, ahead of what could be a competitive general election race against Rep. Joe Donnelly (D-Ind.).

Politico first reported the group's decision.