Oklahoma constitution
Article III: suffrage

Section 1 - Subject to such exceptions as the Legislature may prescribe, all...

Section 2 - The Legislature shall create a State Election Board to be...

Section 3 - The Legislature may enact laws providing for a mandatory primary...

Section 4 - The Legislature shall prescribe the time and manner of holding...

Section 5 - All elections shall be free and equal. No power, civil...