Al Franken's approval rating down to 39% in Minnesota

Franken's approval numbers may be tracking Obama's downward.  This race hasn't been on anyone's radar for a while, but it will be now.  I just read a piece in Politico noting that this could be one of the most expensive races in the country. From the St Could (Minn) Times:

. . . The approval numbers come from the annual 2013 St. Cloud State University Survey. A portion of the findings were released Wednesday.   

In the statewide survey, 39 percent of respondents rated Franken’s performance as “excellent” or “pretty good,” with 51 percent rating him as “only fair” or “poor.”   

Forty-four percent of respondents rated Dayton at “excellent” or “pretty good,” with 52 percent scoring him as “only fair” or “poor.”   

For President Barack Obama, 38 percent of respondents rated him as “excellent” or “pretty good,” with 61 percent scoring him “only fair” or “poor.” . . .