The opportunity is there for the taking as beating Dole is clearly achievable.  A January 22, Public Policy Polling poll showed Dole's approval rating at

        Approve: 44%
         Disapprove: 33%
         Not Sure: 23%

This is worse than SUSA's polls for Gordon Smith

        Approve: 50%
         Disapprove: 38%
         Not Sure: 13%

Or Norm Coleman

        Approve: 53%
         Disapprove: 39%
         Not Sure: 8%

Both of which are regarded as seats that the Democrats could potentially pickup.

Unfortunately, she is right now beating both her challengers in the polls by a significant number

        Dole: 48%
         Hagan: 35%
         Undecided: 17%

        Dole: 49%
         Neal: 30%
         Undecided: 22%

All this would change with John Edwards in the race.  He would bring a big name, a great deal of funding, dedicated supporters, and great enthusiasm to the race.

I know a lot of people have been speculating about him becoming the next Attorney General, which would be wonderful; however, I would argue that being Senator would help America more.  We can be confident that both Clinton and Obama would choice strong and dedicated Attorney Generals, even if they are not as strong nor as dedicated as Edwards would be.  What we cannot be sure of is that we will be able to beat Dole in November.  So with a choice between one great Attorney General and a bad Senator or a fairly good Attorney General and a great Senator, I think the decision is quite easy.  

John Edwards is a fighter and truly speaks for those who cannot, so why should he stop now?  He has nobly dropped out of the race for President but his influence should not halt, but rather flourish as an powerful Senator and possibly the person who could give us a filibuster proof majority in the Senate.

Update

I just created a Facebook group for John Edwards for Senate 2008 and the more people who join the more likely we'll be able to convince him to run.