Hmmm.
That's a curious reaction from you. Perhaps you will explain? Nelson's retirement announcement is already being described as "a serious blow to Democratic efforts to hold onto their majority in the chamber next November."
http://www.politico.com/news/stories/1211/70879.html
If it's your view that he wouldn't have been able to hang onto his seat, you might want to re-think it. Republicans can now put their resources into OTHER elections. They should have an even easier time winning next year's Nebraska election if they don't need to fight off an incumbent.

Gold is $1,581/oz today. When it hits $2,000, it will be up 26.5%. Let's see how long that takes. - De 3/11/2013 - ANSWER: 7 Years, 5 Months