Red State or not, this is Ted Cruz we're talking about.
He would be repulsive on any ticket.
If he was an authoritarian supreme leader he wouldn't get 99% of the vote. Some of his own party members would rather choose prison or death than to vote for Ted Cruz.
So the question is, what is he doing for his state that makes him at least popular enough that no primary challenger has upended him and the Democrats haven't been able to beat him.
Texas is a red and pro-gun state, sure. But it also seems to be a Ted Cruz state. For some weird reason.
Oh and Ted Cruz isn't even an American or Texan, he's a Canadian.