In a general sense I agree.
You can expand that to all humans in my case.
I find that most of them lie like rugs, given the right circumstance.
But as of yet I have detected no deception from Cruz...
I guess the better way to put it is that neither Cruz nor Trump SHOULD be trusted as with anyone in a position of power.
The good news is that Trump & Cruz are in good company by the people that hate them. It's also good news that Cruz & Trump lead the pack and both aren't fighting behind a Bush or someone laughable like Kasich. A Trump or Cruz presidency bodes well for our future IMO.