The Dark Side
Ted Cruz has made a lot of enemies, but he seems to be one of those who feeds on negative energy and hate - the dark side, if you will. History suggests that such people can be extremely dangerous. From his student days creeping out the girls in his residence hall with his Cruzing in his paisley dressing gown to his present as the tormenter of the GOP establishment he has sought out and sucked up anger and disgust.
The anger feeds more than his personal weirdness - it also feeds his supporters who revel in anything that offends the larger community and the establishment. The fact that he's the catspaw of anonymous zillionaires is lost on most of them.
From such materials, tyrants are sometimes made.