What impressed me, one of many things recently, is his segment on Fox News with Bret Baier and the special report panel (as referenced/seen on FR and Youtube, as I wouldn't be caught dead with TV). Bret was trying to corner him on how if the Supreme Court struck down Obamacare from extending subsidies, would he be proposing some stopgap measures (however he put it) to soften the blow for people who had to buy Obamacare and weren't going to get compensated, and Ted said no and stood his ground without reservation. Bret looked flabbergasted and incensed in that moment that someone would actually hold to their principles rather than be swept up in feelgood and wanting to soften the blow. That is the moment when I saw real principal and conviction and immunity to the hedging with most politicians!
To express this in secular words so as not to turn off the lurker who might be exploring conservatism, without faith the individual is liable to "miss positioning" that is to hubris, a tendency to play God. The biblical stories in Genesis are not there as fairytales rather they undertake to tell us about the nature of man and his natural proclivity to be God.
The leftist will do away with any notion of God which interferes with his ability to play God. There is no arena offering greater scope which to play God than politics which, after all, seeks to exercise power and control over other men. The natural inclination of every man to rationalize his own desires as the common good permits most men, but especially leftists, to do more and more good at the expense of their fellows.
The political importance of faith is that the tendency toward arrogance is mitigated.
Paradoxically, the gift of faith also liberates and empowers. Thus we see both tendencies at work in Ted Cruz, he is morally empowered to speak the truth as he sees it despite an array of snares and traps but he is speaking a truth embodying sound conservative principles because he is aware that he is not God.
If we want to know why Barack Obama, Bill Clinton, Hillary Clinton are narcissists, the answer should now be obvious.