Here's some of the record of the head of the Senate gopE wrongly messing in Republican U.S. Senate primary races ...
Nebraska: Osborn over Sasse
Texas: Dewhurst over Cruz
Indiana: Lugar over Mourdock
Utah: Bennett over Lee
Kentucky: Grayson over Paul
Florida: Crist over Rubio
Alaska: murKOWski over Miller
Pennsylvania: Specter over Toomey
And when he loses, he doesn't help the actual GOP primary winner. Go home Mitch. You're a loser.
Why is Sasse better than Shane Osborn?