Yes, slavery is on the ballot in these states

About 20 state constitutions have exception clauses that allow either slavery or involuntary servitude as punishment for crime. Vermont prides itself on being the first in the nation to ban slavery in 1777, but its constitution allows involuntary servitude in certain circumstances, such as to pay a debt, damage, fine or other cost.

National School Choice website

McClaughry: Michigan school choice expansion

Last year the Michigan Legislature approved two strong school choice bills that established a Michigan Student Opportunity Scholarship (SOS) program. Democratic Governor Gretchen Whitmer vetoed them, but the state constitution allows the Legislature to override a governor’s veto.