; (ii) directly or indirectly owns or controls more than 50 percent of the voting shares of the vendor; or (iii) is the beneficiary of a trust which owns or controls more than 50 percent of the voting shares of the vendor and, under the terms of the trust, can direct distributions from the trust. (C) Immediate family member defined In this paragraph, the term immediate family member means, with respect to a candidate, any of the following: (i) Spouse, and parents thereof. (ii) Sons and daughters, and spouses thereof. (iii) Parents, and spouses thereof. (iv) Brothers and sisters, and spouses thereof. (v) Grandparents and grandchildren, and spouses thereof. (vi) Domestic partner and parents thereof, including domestic partners of any individual in clauses (i) through (v). . (b) Effective date The amendment made by subsection (a) shall apply with respect to payments made on or after the date of the enactment of this Act.