Amendment 68 (CONSTITUTIONAL) Shall state taxes be increased $114,500,000 annually in the first full fiscal year, and by such amounts that are raised thereafter, by imposing a new tax on authorized horse racetracks' adjusted gross proceeds from limited gaming to increase statewide funding for K-12 education, and, in connection therewith, amending the Colorado Constitution to permit limited gaming in addition to pre-existing pari-mutuel wagering at one qualified horse racetrack in each of the counties of Arapahoe, Mesa, and Pueblo; authorizing host communities to impose impact fees on horse racetracks authorized to conduct limited gaming; allowing all resulting revenue to be collected and spent notwithstanding any limitations provided by law; and allocating the resulting tax revenues to a fund to be distributed to school districts and the charter school institute for K-12 education?