The Senate Conservatives Fund has not endorsed anyone. They say “Minnesota is on our 2014 Priority List because it presents conservatives with a potential pick-up opportunity. Incumbent Democratic Senator Al Franken has an extremely liberal voting record and is running for re-election in a state that could be competitive for Republicans.”
Personally I would vote for anyone over Al Franken. I remember when he won that seat, I questioned it then and have never seen or read anything that answers those questions. There is a campaign to defeat Al Franken, check out the article by Lloyd Marcus.
If you know of anyone running in Minnesota. Please let me know from the website
That way I can update this post.