I hope Rubio is not evolving into member of the Geraldo Rivera wing of the conservative movement.
I'm not sure that he isn't suffering his own bit of "Obama Syndrome". He sounded good, is young and good looking, and got elevated to his current position on the express elevator.
We don't really know what's been in his mind and heart for an extended period of time, so we may have thought he was far more rational and conservative than he is. Add that to the express trip to fame and he is likely also a bit taken with himself for his "achievements".