My take: I support Cruz and give him what little money I have, the first candidate ever for me.
But if he does not make it, I will vote for Trump.
I will take either, but I give to Cruz.
So a vote for either, is a vote for both, in a way.
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Cruz and Trump have opposing goals.
Cruse supports freedom and the constitution, while Trump supports stronger, and bigger government, and has promised to ignore the constitution if it gets in his way.