If the wish granted was retroactive then it would be whatever was necessary to prevent the war of Northern Aggression. That would cure most of what ails our country.
If it's something to be changed going forward from this point, a Constitutional litmus test before being allowed to serve in any public office. If you don't fully grasp what the Founding Fathers intended and vow to abide by the same, you cannot serve in public office.
"If ye love wealth greater than liberty, the tranquility of servitude greater than the animating contest for freedom, go home from us in peace. We seek not your counsel, nor your arms. Crouch down and lick the hand that feeds you; May your chains set lightly upon you, and may posterity forget that ye were our countrymen."
Samuel Adams
ΜΟΛΩΝ ΛΑΒΕ