David DeMatthews and David S. Knight wrote in the San Antonio Express-News that Governor Greg Abbott’s voucher plan is “a terrible idea,” and they explain why. (Since I don’t have a subscription to the San Antonio Express-News, I am copying their tweet.)

David DeMatthews is an associate professor of educational leadership and policy at The University of Texas at Austin.

David S. Knight is the associate director of the Center for Education Research and Policy Studies and an assistant professor of educational leadership at The University of Texas at El Paso.

To summarize:

1. The vouchers don’t cover the cost of most private schools.

2. The money spent on vouchers will hurt public schools, which most students attend.

3. Budget cuts will force public schools to cut popular programs, like dual language education, STEM programs, and vocational training. These cuts will hit low-income districts the hardest.

4. Private schools that…