Wasn't that Minnesota poll just adults? Either way, Mason-Dixon does suck, yeah. I remember when it was Chuck Todd's favorite pollster back in the day.
And don't talk about putting hands up old women's skirts Tender, you gross pervert.
Well, it WAS excellent in the past, THE pollster of Florida and a few Southern states. They messed up 2008 due to a too tight likely voter screen and since then, it's a disaster.
Given they stopped polling Virginia in 2012 because "Romney had it in the bag", I suspect the issues aren't methodological, but ideological.