You need some sort of a bogeyman, which you rarely have in off-year elections.
The Koch Brothers? Good luck with that. They’ve wisely kept a low profile. No one can tell you what they look like.
The Dems won’t get the chance to run against a plastic Mormon in Armani suits who abuses dogs, ships jobs to India and gives people cancer. Not this time.
Most voters do not have any idea who the Koch brothers are or what Koch industries owns. They probably think they make Coca Cola.