SurveyUSA has the numbers:
Michele Bachmann(Insane ‘Phant): 44%
Elwyn Tinklenberg^* (D): 47%
Bob Anderson (I) 6%.

There is a 4% margin of error, so it’s still too close to call. There is only about 2% undecided, and so the 2:1 undecideds breaking against the incumbent does not mean much here.

It will be close.

^*I know that it’s not nice to make fun of someone’s name, but his name still sounds like a character from Garrison Keillor’s fictional Lake Wobegone.