We just moved to ND last year and I think from what I have heard Last Dakotan hit it on the head. I was amazed when I found out that this red conservative state had fed level dems. Also from what I have been able to glean Fargo is a fairly strong blue (though that might not be true). Though in my little teeny tiny town the mayor had an 0 sign on her business, big mistake I have 5 kids and it is an ice cream place. So did my neighbor, big disappointment.
I thin that’s because Republicans are too busy trying to earn a living and pay taxes to run for crappy little mayor jobs. Unfortunately, those mayors become US Senators...
Other than the Reservations, the state gets bluer as you go East.