Why no Democratic opponent for Ben Sasse?

[LeBron]

There is a Democratic candidate (a staunch activist against the XL Pipeline being approved, I might add), but Sasse despite his controversies in being Tea Party (Palin)-backed has nothing to worry about and is practically another typical socially conservative politician you would find in NE. His biggest problems will just be his support for the pipeline, his past with Obamacare and defending himself against the DC "outsider" label but even those won't be enough to tilt the race. Ben Nelson or perhaps Chris Beutler might be able to have beaten Sasse, but Domina has about as good of a chance at winning as Chad Taylor in neighboring Kansas.