The well educated wealthy suburbanites and farmers can't outvote the inner city folks and the blue collar whites up in The iron range.
You clearly know nothing about MN, politically or otherwise.
Please explain. Do wealthy Minnesotans in the suburbs vote republican? Yes. Do a majority of rural white voters in the farm areas vote republican? Yes. Do the cities of Minneapolis and St Paul vote democrat? Yes. Is the iron range a working class white democrat area? Yes.
The answer to your first two questions is actually just "kinda", which is some of why Minnesota is so liberal. Many of the richer suburbs (MN-03) are also the swingiest.
Yes. What I mean is they don't vote R at a high enough rate to outvote Minneapolis-St Paul in the way that some other wealthy Midwestern suburbs (Indy, Milwaukee, Cincinatti, etc) do.