West Virginia Gov. Jim Justice on Saturday signed into law the bill that school-choice advocates say will implement the nation’s broadest nonpublic school vouchers program.

Programs in other states are limited to low-income, special-needs or other subsets of students, or have caps on the number of recipients in general. But West Virginia’s program will be open to all K-12 students, including by offering public money to families who already don’t use the public school system.

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