Buh bye, Walker. You couldn't carry your own state, in a presidential election, much less win a national election. Your policies are epic failures. It has taken a while for the toxic ideology addicted to realize just how badly you have led Wisconsin, but everyone is catching on. And sadly, it is unlikely, given your failures, that the Koch brothers who own you will have much futher use for you -- in view of those epic, EPIC failures.
The Koch brothers prefer to buy winners; my guess is they will next focus their big big bigot bucks on Rubio, but he has only minimal more chance of success than Walker.