Cruz is probably best known for the recent government shutdown, the result of a particularly ill-conceived, unrealistic attempt to derail Obamacare. Did he really think that popular sentiment would be won when the media was inevitably going to blame the Republicans for the shutdown?
Obamacare has been a disaster in both conceptualization and execution thus far, but defeating it in the long run will require more adroit tactics. Cruz gives off the air of someone so narcissistic as to be unrealistic about what he can and cannot accomplish.
Barack Obama's self-satisfied look also reflects his personality.
Obama and Cruz may not have much in common politically, but they do seem to have a certain similarity of character.