Trump never reneged. That would mean that he did not support the nominee. He supports the nominee.So evidently liars who signed agreements and pledges mean nothing to you.
Nope. The pledge was null and void the moment Trump attacked Cruz's family. Besides, Trump reneged on the pledge himself after signing. So... pot, meet kettle!
Cruz made an awful error. He thought he would pull a little sabotage and justify it with his wife and father.
The result was it gave every enemy he has in the Senate the opportunity to justify why he is so universally despised. He is insufferably petty.
Ted Cruz has ended his political career. I hope his revenge was worth it.