why did Byron Dorgan's poll numbers head south so quickly?

[freepcrusher]

he had always been a very popular incumbent and had fallen below 60 percent only twice in his career (57% in 1980 and 59% in 1992). But in 2010, early polls showed him trailing by as much as 20 points.

One thing I've been concerned about is that this is one of many examples that its becoming harder to bs the populace.