At this point I think Democrats have a better chance of beating Richard Burr than they do of defending Blanche Lincoln.
It will be interesting to see what sort of impact that has on resource allocation. Will national party organizations and Dem friendly interest groups pump millions into a lost cause in Arkansas, or might they cut their losses at some point and consider making a larger investment in North Carolina where the party might be able to define ill a relatively unknown incumbent?
I don't know the answer to that question but I do know that's more important than Richard Burr's big early fundraising lead on his Democratic opponents. There is no way any of the Dems can contend, in the absence of external assistance, with the fundraising platform Burr has as an incumbent Senator. But if the party really thinks it has a chance here then rest assured the eventual nominee will have all the money they need in the fall, just as Kay Hagan did two years ago. And if the party doesn't end up thinking it has a chance here then it doesn't really matter how much money the Senate candidates raise.