Sure Hurley
As with cattle breeds, there are different percentages that make up that breed of cow.
there are purebred, fullblood, crossbred etc.
The same is true of any American citizen
There's Natural, Native, Naturalized. They are all just classifications of citizens.
In the constitution the founding fathers thought it important to distinquish between those classifications, believing that it shows degrees of loyalty to the "new Country"
The president or commander in chief must be of the highest degree of loyalty, (one born in the US of 2 citizens)
Not that much different than breed associations really. Cattle have to be of a certain % to be registered in the "herdbook"
I should add that I understand that some breeds or associations realize that a breeder/owner of percentage cattle might be as loyal to the association as any other, so they have democratic votes, to amend their "constitutions" to allow those members to become "President" of that particular association.