“Fixed” could mean a congressional decree like McCain got. He was born with the ability to be an instant citizen. He chose not to be open about this.
The fig leaf resolution for McCain was an end run around the requirement in a quid pro quo that the GOP would not question The Usurper.
The GOP had many more ineligible candidates on the bench, Jindal, Rubio, Cruz, Haley.
In their justification for McCain being eligible they cited his two parents being citzens.
He was born in the country of Panama. Still not eligible.
Obama had a foreign national father. So did Cruz.
If one can be anything else when born, one cannot be a natural born citizen.
Born here of citizen parents.
Natural born citizen.