Well let’s consider this. If Ted Cruz is the nominee and he were to pick Rubio or Paul, are you gonna bail on Ted? Of course not. The head of the ticket is the one that counts the most. I suspect all of us would still vote for Ted even if he had a St. Bernard as a running mate.
If Cruz were to pick Walker I would be disappointed in his choice, but I would vote for him in the same way I voted for Palin, not McCain.