( KTRS ) Two proposals aimed at requiring Missourians to show photo ID before voting are heading to the Senate floor.

Senators voted 8-2 Monday along party lines to advance a bill and a constitutional amendment out of committee. Both measures have already passed the House, though the constitutional amendment would need voter approval.

Critics of the measures say voter impersonation is extremely rare, and these proposals could disenfranchise hundreds of thousands of people who don’t have proper identification.

Supporters say it’s nearly impossible to prove voter impersonation without a photo ID requirement, adding that the legislation would only go into effect if the state helps pay for people’s IDs.