Supporters and opponents have already spent more than $15 million on the myriad statewide ballot measures Coloradans will decide this November — and that was before the ballot was even finalized earlier this month. Voters will weigh in on 14 ballot measures. If passed, they would amend the Colorado Constitution or change state law on topics as varied as property tax exemptions for veterans with disabilities, abortion and reproductive rights, firearm taxes, mountain lion hunting and how the state conducts elections for major offices. Each measure has core constituencies.