It's neither.
It's too little, too late to have any significant effect.
It won't get Cruz nominated (and therefore not a success), nor will it destroy his chances (and therefore not a train wreck).
In my opinion, it's another "McCain/Palin" fiasco.
Cruz won't get as far as McCain; he won't get nominated.
And even if he did, Fiorina is a heck of a lot smarter than Palin, so I think you're wrong on both counts.
In re: McCain/Palin fiasco, that is yet to come. :-) Just wait till Trump melts down AFTER getting the nom.
@ TQ: That's just what the Democrats are expecting, in wishing Trump to be the nominee.
But if Hillary melts down worse, they may regret what they wished for.
It's a completely pointless desperation play on the part of Crooked Cruz.
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