We need to be consistent. If Obama was not eligible, then neither is Cruz. That is if Obama was really born outside the country.If Obama is legal then Cruz is. End of story. It is one or the other. The frustrating part is those who want to play both sides of the fence, depending on who they support. Nonsense.
It's not that easy, because the reasons for finding them unqualified are different, even though the reasons in both cases orbit the NBC clause.
Obama was (cough cough) born in the US. Cruz was not, not the citizen of any US state at his birth, to be pedantic about it.
I can see the appeal of the simple argument, citizen-at-birth = NBC. It is a powerful argument, easy to sell, but it reaches the wrong result. I don't blame the people for falling into the trap. I blame the likes of Katyal, Clement, all of Congress, the serious candidates for not teaching truth. Maybe the generation before failed, and the current leaders are innocently duping the public, but I doubt it.
-- The frustrating part is those who want to play both sides of the fence, depending on who they support. --
Most of that stems from innocent ignorance, and a not-unreasonable point of view that rejects "Obama was born in the US, and remained a US citizen through his life."