Imagine that uncle Joe's worst poll is one which shows him perform 3 points better than Clinton.
Out of two polls total for MN.
Trump should target this state along with NH. If losses in the sun belt prove unstoppable, these are the only two states that could realistically get him back to 270.
Trump's going to either only gain states or only lose states. Not some combination of both.
He's better off campaigning his ass off in Florida, Pennsylvania, and Wisconsin.
It's unlikely, but it's not always been that way in the recent past. Dubya won in 2004 while losing some states and gaining others, and among both types, there were potential tipping points.
Particularly nasty trends in AZ and amongst FL boomers
might make MN a better opportunity. At this stage in the game, if the Trump campaign has sufficient funding for eight battlegrounds and NE-2, one of those should definitely be MN. He spent $0 there from September in the 2016 campaign and didn't visit the state at all. Just putting in a little more effort there could pay off big time.