After spending more than $450,000 this week to win one House race and lose another in Ohio, a Texas-based super PAC that claims to be taking nonpartisan aim at congressional incumbents is now dropping a money bomb on embattled Alabama Rep. Spencer Bachus.

In the last 48 hours, the Campaign for Primary Accountability (CPA) has filed reports for $153,267 in independent expenditures, almost all in Alabama. The group is spending to defeat two veteran members of Congress:  five-term Rep. Jo Bonner and ten-term Rep. Spencer Bachus in the Tuesday primary.  Most of CPA's spending takes aim at ...