Idaho Code § 34-604: Election of United States senator — Qualifications.

(1) At the general election, 1972, and every six (6) years thereafter, there shall be elected one (1) United States senator. At the general election, 1974, and every six (6) years thereafter, there shall be elected one (1) United States senator.

(2) No person shall be elected to the office of United States senator unless he has attained the age of thirty (30) years at the time of his election, has been a citizen of the United States at least nine (9) years and shall reside within the state at the time of his election.

(3) Each candidate shall file his declaration of candidacy with the secretary of state.

(4) Each candidate who files a declaration of candidacy shall at the same time pay a filing fee of five hundred dollars ($500) which shall be deposited in the general fund.