Constitutional amendment regarding qualified elector to require that only a citizen can vote

SB 185 is a constitutional amendment bill that would require U.S. citizenship for voting in Montana. It proposes amending Article IV, Section 2 of the Montana Constitution to state that only U.S. citizens aged 18 or older who meet registration and residency requirements can be qualified voters, excluding those serving felony sentences or deemed mentally incompetent by a court. If passed by the legislature and approved by voters, this would change Montana's voting eligibility rules. The bill died in the Senate on May 23, 2025, and did not advance to a voter ballot.