…the real story was this:  Mark Dayton dropped eight points in the SurveyUSA/KSTP poll.  Emmer was up four.  They’re in a statistical tie.

Leftybloggers point out that the crosstabs changed; this SUSA/KSTP poll had equal numbers of Republicans and Democrats, while the previous one polled more Democrats.

Not enough more to completely explain an eight point drop, of course.