The Wall Street Journal discusses the netroots campaign against Representative Chris Carney (D-PA 10), but they miss a big point: in 2006 Chris Carney lied though his teeth to get the support of Blue America, Moveon, etc. on any number of issues (the example that springs to mind is that he flipped flopped completely on sexual orientation based hate crimes legislation).
Carney has welded himself to George W. Bush in Congress, despite protestations to the contrary in 2006, and I approve of Blue America welding him to George W. Bush, “Mr. 29%,” back in his district.