Nigeria

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(4) The Government of a State shall ensure that every person who is entitled to vote or be voted for at an election to House of Assembly shall have the right to vote or be voted for at an election to a local government council.
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Every person shall be entitled to assemble freely and associate with other persons, and in particular he may form or belong to any political party, trade union or any other association for the protection of his interests:
Provided that the provisions of this section shall not derogate from the powers conferred by this Constitution on the Independent National Electoral Commission with respect to political parties to which that Commission does not accord recognition. (Sec. 40)

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(2) Every citizen of Nigeria, who has attained the age of eighteen years residing in Nigeria at the time of the registration of voters for purposes of election to a legislative house, shall be entitled to be registered as a voter for that election. (Sec. 77)