Would you vote for Cruz if Walker was on the ticket as VP?
I would, because:
That means you would compromise your principals no matter how much you try to rationalize it.
Not at all, because if it were Walker/Cruz, I'd vote 3rd party. I voted for Palin in 2008. That didn't do any good.
What it means is that there needs to be a second person on the ticket. I would prefer someone better, but I would not write off Cruz because he settled on Walker.
The top of the ticket counts. The second man doesn’t. If you think the V.P. is always the next nominee, check out V. P. Biden.