(a) The Republican National Committee shall not, without the prior written and filed approval of all members of the Republican National Committee from the state involved, contribute money or in-kind aid to any candidate for any public or party office except the nominee of the Republican Party or a candidate who is unopposed in the Republican primary after the filing deadline for that office. In those states where state law establishes a nonpartisan primary in which Republican candidates could participate, but in which the general election may not include a Republican candidate, the candidate endorsed by a convention held under the authority of the state Republican Party shall be recognized by the Republican National Committee as the Republican nominee.

(b) No state Republican Party rule or state law shall be observed that allows persons who have participated or are participating in the selection of any nominee of a party other than the Republican Party, including, but not limited to, through the use of a multiparty primary or similar type ballot, to participate in the selection of a nominee of the Republican Party for that general election. No person nominated in violation of this rule shall be recognized by the Republican National Committee as the nominee of the Republican Party from that state.