Do you know the poll numbers?
http://knoxblogs.com/humphreyhill/2014/05/26/recent-alexander-carr-polling/
Here is a recent rundown. Alexander is polling ahead. However one quote is interesting:
“Lamar Alexander is the best-known Tennessee politician since Howard Baker. He is certainly the most well-known Tennessee politician of the last quarter century.
He is a Republican institution and he is polling at less than 50 percent.
For politicians, those kind of numbers are red alerts. Any time an incumbent is under 50 percent, they are in a lot of trouble. Alexander is not only below 50 percent, he is significantly below 50 percent.”