Given that it's the season for ghoulish metaphors, I'm emboldened to report that a ghost is haunting northern Minnesota politics this year.
I can almost hear Jim Oberstar's booming laughter upon learning that I'm referring to him.
The late Oberstar's unexpected 2010 defeat after 36 years in the U.S. House has been much on both Republican and DFL minds in both his beloved Eighth District in northeastern Minnesota and the adjacent Seventh, which runs along nearly the entire western border of the state.
Republicans point to Oberstar's loss to Republican newcomer Chip Cravaack four years ago as evidence that they can take both districts from their current DFL occupants, U.S. Reps. Collin Peterson of the Seventh and Rick Nolan of the Eighth. Why?
• It's again a mid-presidential-term election. That typically means reduced turnout — and that typically favors Republicans.
• Demographic changes are working in the GOP's favor, particularly in northeastern Minnesota.
Loss of population on the traditionally DFL Iron Range combines with metro exurbia's seepage into the southern portion of the Eighth District — where Cravaack's Tea Party holds sway — to change the Eighth District's partisan tint from Democratic blue to purple. In 2012, President Obama won the Eighth with a squeaky 51.5 percent of the vote.
The Seventh tilts right, save for populist precincts in the Red River Valley that hew to their Farmer-Labor heritage. Republican presidential candidate Mitt Romney carried the district by a 10-point margin in 2012.