Modifies provisions relating to party affiliation

HB 987 modifies Missouri's voter registration process by adding a clear option for political party affiliation on the registration form, including "unaffiliated" as a default choice. If a voter does not select a party, election authorities must mark their registration as unaffiliated. The bill standardizes the registration form statewide to comply with federal law and ensures it includes all established parties, while simplifying data collection when applying through driver's license offices. This change directly affects voters registering to vote in Missouri, particularly those who may not have previously indicated party preference.