Here you go - Class D Felony in Indiana:
IC 3-14-3-19
Inducing votes by gift or offer to compensate
Sec. 19. A person who, for the purpose of inducing or procuring another person to:
(1) apply for or cast an absentee ballot; or
(2) vote or refrain from voting for or against a candidate or for or against a public question at an election or political convention;
gives, offers, or promises to any person any money or other property commits a Class D felony.
As added by P.L.5-1986, SEC.10. Amended by P.L.3-1987, SEC.482; P.L.103-2005, SEC.37.
Interesting. I may check some case law on that if I have time.