Arizona spent $3.2 billion on illegal aliens last year.
The school voucher system has been generally successful and the reason that the spending is increasing is because parents are fleeing the political indoctrination, progressive policies, low academic standards and general weirdness and lack of safety of the failing public schools.
The reason for the shortfall is the state has not cut back on funding the failing public schools that are becoming empty.
If Public schools there or anywhere cannot respond elastically to drops in enrollment by reducing costs in line then they will fail. Unions must allow for the financial health of their contracting employers or a pox on both their houses. Might public schools compete in a healthy way by adopting the practices that private or charter schools are offering and drawing enrollment with?