(a) Notwithstanding any provision of this code to the contrary, amounts received by a candidate as contributions that are in excess of any amount necessary to defray his or her expenditures may be:

1. (1) Used by the candidate to defray any usual and customary expenses incurred in connection with his or her duties as a holder of public office; and

2. (2) Contributed by the candidate, after the general election, to:

   1. (A) Any charitable organization or subsequent campaign by the same candidate, without limitation;
   2. (B) Any national committee in accordance with federal requirements;
   3. (C) Any state party executive committee or state party legislative caucus committee, in any amount; or
   4. (D) Any local committee of any political party or any other candidate for public office, in accordance with the existing limitations on contributions.