Sen. Jim DeMint ’s (R-S.C.) Senate Conservatives Fund, which has helped boost the candidacies of several nonestablishment Senate candidates this cycle, has shied away from endorsing O’Donnell, largely because of her questionable viability in the general election. But DeMint has signaled that he supports her policies. Former Alaska Gov. Sarah Palin (R) has been silent on the Delaware race as well. And citing the same viability fears, the Wall Street Journal urged voters to back Castle in a Wednesday editorial…

A Castle campaign aide suggested that the worst may be yet to come.

O’Donnell “claims to have this big video that she’s going to unleash in the last few days of the campaign that shows Castle taking cash from Joe Biden. We’re kind of waiting for that to unfold,” the aide said with an incredulous laugh. “She says that it’s going to be earth shattering.”