That wont be the line of attack.Cruz has serious Ivy League credentials, and the Democrat would probably suffer badly in the comparison.
I favor nominating a successful governor such as Walker of Wisconsin, for the simple reason that senators arent executives, and governors are.As a campaigner and a strong debater, Cruz would be great as a VP candidate - and he would be a fine potential SCOTUS nominee after a win.
If you nominate a senator and the Dems nominate a governor, you could find yourself in trouble - the last (only) senator to win against a governor was Warren G. Harding, in the wave election of 1920.
If you nominate a senator and the Dems nominate a governor, you could find yourself in trouble.
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Neither Hillary Clinton nor Elizabeth Warren are, or ever have been, a Governor; and one of them will be the Dem nominee.