If Cruz and Carson dropped out, Bush and Rubio would be guaranteed to not get the nomination.
You can’t say that if Trump were to.
The Establishment is going to start backing Cruz if Carson falters. Count on it. He will be their preferred splitter candidate.
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Trump cannot get the GOP nomination, because none of those not presently supporting him would ever consider voting for him.
That is not so for Cruz. He is the candidate most likely to pick up the votes of those falling out of the struggle.
Cruz will be the last opponent to Bush left standing.
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