Obama must be so happy: Al Sharpton has announced that he will launch a “big-time” attempt to tear the junior senator from Illinois down. Most candidates worry about when the right time is for a Sister Souljah moment. Now, Obama doesn’t have to. Sharpton went right out and handed it to him. Obama’s main concern is that white voters will associate him with the Jackson/Sharpton tradition. Sharpton’s made the case that Obama’s part of a new, less corrupt and special interest-based generation of black leaders better than Obama ever could.