I am speaking for myself as a Cruz supporter and someone who wants him to be president, if not this election cycle then the next one. And I see nothing to be gained by being part of a Trump cabinet. It's a dead end where the presidency is concerned. And being vice-president isn't an improvement. Far better to remain in the Senate or perhaps run for governor of Texas if that opportunity comes up.
If we don’t win this cycle, the U.S. will dissolve.