Missouri was exactly the same way! They convinced ppl to vote for the lottery yet somehow the schools are still broke. Illinois, where my daughter lives/teaches, is the same way. She worked a long time as a "part time" contract instructor until the voters finally passed a tax increase to better fund the district. She is now permanent FT with benefits.
A funny (not ha-ha) thing about that lottery and the legalized casinos in Missouri: Her dad and her aunt (dad's sister) both have severe gambling problems. His house was foreclosed on, he's got two criminal charges pending against him for passing bad checks, and now a criminal trespass for going to the casino after being banned from them. Probably he self-banned himself which you can do in MO, but if they catch you on the premises you are arrested. Her aunt is almost as bad. It's really sad.