Change was virtually the only campaign theme Obama has used. Then he picks Joe Biden as a running mate.

Ron Fournier gets it right: ” The candidate of change went with the status quo.”

And Fournier adds, ” The picks say something profound about Obama: For all his self-confidence, the 47-year-old Illinois senator worried that he couldn’t beat Republican John McCain without help from a seasoned politician willing to attack. The Biden selection is the next logistical step in an Obama campaign that has become more negative - a strategic decision that may be necessary but threatens to run counter to his image.”