Tennessee Code Title 2. Elections § 2-10-307

(a) No candidate or political campaign committee shall accept any contribution or make any expenditure in violation of this part. No officer or employee of a political campaign committee shall accept a contribution made for the benefit or use of a candidate, or make any expenditure on behalf of a candidate, in violation of any limitation imposed on contributions and expenditures under this section.

(b) In keeping with the federal law, a contribution made or accepted in excess of the limitations established by this part shall not be a violation of this part if the candidate or the political campaign committee returns or refunds the contribution to the person who made the contribution within sixty (60) days of the candidate's or committee's receipt of the contribution.