Mr. Gambee: you have not countered the argument that a partial voucher only benefits those who can afford to pay the "non-vouchered" tuition.  I have made absolutely no argument relating to persons with high incomes not be entitled to those incomes.  Your contention that, somehow, I oppose private ownership is rather strange.  I don't know where it comes from.

Regarding public schools and challenging students:  State law requires that the District of a student's residence provide an education to the student in the "least restrictive appropriate educational environment."  Regardless of how "challenging" the student might be, that requirement holds.  If a student is suspended or expelled, the District must still provide meaningful educational services to the student.  If a student is so disturbed that he or she requires a residential educational placement, the District must pay for that service.  Private schools simply tell the students they are no longer welcome at that school.