The more Trump campaigns, by coming up with plans etc, the more clearly Cruz shines, because he has already been fighting the fight. Cruze doesn't need to formulate a position because he has already been battling for that position. Cruz repeatedly shows that he is the conservative in action not just another campaign conservative. Trump may or may not be sincere, but nobody really knows and that is his Achilles heal. Those who have been watching for more than the last few months have no question that Cruz is sincere and bold, that is what scares the liberals and the GOPe more than anything else.
Who's the true conservative? I don't know. I do know (and I'm one of the first small donations to the Cruz campaign) that Cruz's call for massive increases in H1B Visas is a real bad idea and that he got played very badly on that trade deal, in spite of warnings. Having Cruz in the Senate, alongside Jeff Sessions, and the small handful of conservatives there, is what the nation needs for President Trump to straighten out that mess.
So let's save our money and time and instead spend it on real constitutional conservatives getting to DC, to serve alongside those already there. I'd love to see Senator Cruz replace Mitch McConnell as Majority Leader.