I think Bustamante may be a shill for Davis; remember that the mainstream press can be and is used effectively by the RAT party. When the democrat party electorate really sees Bustamante for what he is, Davis does not look that bad. I think its all part of the plan. Don't think Bustamante would allow himself to be used in that way? Think again.
In a normal election, he would never be chosen by the Cal RAT party as the candidate. Under those circumstances, he carries too much baggage. The better (figuratively speaking; I don't like the bastard at all) choice would be the current AG, Bill Lockyer. He has been strangely silent on the whole affair.