A Republican plan to expand private school vouchers nationwide was dealt a major setback when the Senate parliamentarian said the proposal would run afoul of procedural rules.

NPR asked researchers, advocates, tax experts, a parent and a public school leader for their thoughts on this first-of-its-kind national voucher plan. Here's what they said.

House Republicans' reconciliation bill, which includes a first-of-its-kind national school voucher program, is now heading to the Senate. The proposal would use the federal tax code to offer vouchers ...