A poll now shows Matt Varilek is within one point of Kristi Noem in South Dakota's sole Congressional district. This is the first poll I am aware of, and the conventional wisdom had considered the seat a GOP lock, although I had questioned that conclusion here before.
It looks like this is going to be a fight, and if this seat is a fight that bodes well for Democrats generally.
http://www.mitchellrepublic.com/event/article/id/68531/
(a right wing rag)