§ 26 O.S. § 26-16-102Voting illegally

Any person who votes more than once at any election, who votes
in a precinct after having transferred voter registration to a new
precinct, or who, knowing that he or she is not eligible to vote at
an election, willfully votes at said election shall be deemed guilty
of a Class D1 felony offense. Any voter covered by Section 14-116
of this title who willingly votes and submits an absentee ballot
pursuant to Section 14-104.1 of this title later than the day of the
election shall be deemed guilty of a Class D1 felony offense. Any
person who knowingly votes and submits an absentee ballot issued to
another person shall be deemed guilty of a Class D1 felony offense.