I haven't seen a voucher program that would actually pay for tuition at a top tier private school.
Why must it be top-tier, or nothing?
As far as the amount of a voucher, there may be different means of calculating this. I'm familiar with voucher programs tending to allocate the amount of tax money which a public school district lists as its "expenditure per student", although this may be divided into fixed costs or sunk costs (such as buildings) and variable costs (such as teacher salaries), with only the variable costs "following the student" as a voucher payment to the new school.
The whole thing seems like a pitch to get the government to pay bible school tuition.
Parental choice.
The current educational system including existing school choice was created under previous administration. Time will reveal how much DeVos may influence the US Department of Education, and how much the US Department of Education may influence DeVos.
