Modifies provisions related to the functions of the secretary of state

HB 2125 establishes the "Missouri Voter Registration System," a computerized statewide database managed by the secretary of state to store and maintain voter registration information. The system requires unique voter identifiers, electronic access for election officials, and coordination with state databases (like motor vehicle records) to verify registration details, including driver's license or Social Security numbers. It mandates regular maintenance to remove ineligible voters while preventing errors, prohibits using voter data for commercial purposes (such as selling names for solicitation), and requires security measures to protect the system. This bill directly affects the secretary of state, local election authorities, and all registered voters in Missouri by standardizing voter registration processes and data handling.