Agreed. Harris would be the easiest Republican for Nelson to defeat, followed by McCollum. Both need to stay out of the race if Nelson is to be defeated.
As to demagoguery on social security, the hysteria, the shrill of the 2006 campaign from the left and its media handmaidens has yet to begin. RATS intend to turn GOP into Scrooge in 2006 on this issue. Whether they are successful or not is another matter.
Social Security reform doesn't scare FL seniors like it does in other states (IA, PA). The Sunshine elders are more wealthier than your average senior.