I think a lot of people were not happy with the choice between Blagojevich and Topinka. I also think Topinka's choice of running mate really hurt her - I know a lot of people (especially women) who would have had no problem voting for her, but could not stand Birkett and didn't want him anywhere near the governor's mansion. (he is dreadful!)
That said, it is a beautiful day to be a Democrat.