§ 168.93Candidate for United States senator; nominating petition; signatures; form;

filing.
 Sec. 93.
    In order for the name of a person as a candidate for nomination by a political party for the
 office of United States senator to appear under a particular party heading on the official
 primary ballot, a nominating petition shall be filed with the secretary of state. The nominating
 petition shall have been signed by a number of qualified and registered electors residing within
 this state as determined under section 544f. The nominating petition shall be signed by at least
 100 qualified and registered electors in each of at least 1/2 of the congressional districts of this
 state. Nominating petitions shall be in the form as prescribed in section 544c. Until December
 31, 2013, the nominating petition shall be filed with the secretary of state no later than 4 p.m.
 of the twelfth Tuesday before the August primary. Beginning January 1, 2014, the nominating
 petition shall be filed with the secretary of state no later than 4 p.m. of the fifteenth Tuesday
 before the August primary.