This has nothing to do with 2006 and everything to do with 2008.
This is all about keeping black voters on the Democrat plantation. If they lose the black vote, they have no chance of winning anything anymore. If they can't prove those Republicans are racists, they'll just make stuff up! They'll keep voting for Democrats even though they aren't doing a damn thing to deserve their votes.
It's also probably designed to get to black voters in the D.C. suburbs in Maryland who are thinking about voting for Mike Steele.