Cruz supported Corker. He needs to become a private citizen IMO.
Here was Cruz's explanation, which I thought was rather weak:
“This bill was a missed opportunity. If Congress had acted to defend our constitutional authority – if Congress had adopted the Cruz-Toomey amendment – then we would be able to stop a bad Iran deal. Instead, the odds are now overwhelming that under these ground rules President Obama will negotiate, and Congress will acquiesce to, a terrible deal that allows Iran to acquire nuclear weapons and will endanger the lives of millions of Americans and our allies.
“I voted no on cloture because we should have insisted on amendments to put real teeth in this bill. Ultimately, I voted yes on final passage because it may delay, slightly, President Obama’s ability to lift the Iran sanctions and it ensures we will have a Congressional debate on the merits of the Iran deal. I will continue to lead the fight to prevent the Islamic Republic of Iran from acquiring nuclear weapons and to protect the national security of America and our allies.”
Whenever you place someone on the bench you take a big risk, and Cruz would be no exception. However, I am willing to take the chance on him. No one knows if he is for real or just playing the odds with his conservative stance, and his supposed love for the country. Sometimes you have to take chances. For all we know Trump may not be who we think he is, though I doubt that is the case. He would still get my vote because Hillary I know will be terrible. Even Reagan brought moments of disagreement with him, for me. No human is perfect.