My worry is that Cruz, like a lot of conservative senators and representatives, doesn't understand that the President proposes ideas and Congress should then act on what they see as appropriate (within the confines of the Constitution).
Actually the POTUS should be the Branch of government that only enforces the laws Congress makes, because POTUS is the “executive”.
Regarding whether a Senator can be an effective and proper POTUS, yes. Being President does not actually require managerial experience, rather a sensible ability to pick good assistants who do have managerial experience, be honest and honorable with respect the Constitution and the two other Branches of Government with an unwavering desire to do what’s best for our Country.
The trouble we now are experiencing, that is coloring everyone’s perspective, is that nobama does not care what his assistants do or how they do it, is not an honest or honorable man who does not respect the Constitution nor other Branches and instead is willing to assist in America’s downfall to rebuild it in some progressive socialist fashion. His only being a Senator has nothing to do with how badly he is performing as the Executive.
I am sorry, but I could not be overall comfortable supporting any one of the Governors you named. All may be good conservatives, but none have the true leadership, vision and fearlessness that will be required to right the mess we are in.