In the following article, the Cato Institute's Ilya Shapiro and David McDonald provide some background on Cato's filing of an amicus curiae (friend of the court) brief in the upcoming Georgia Supreme Court case of Gaddy v. Georgia Department of Revenue, which consists of a challenge to the constitutionality of the Georgia Qualified Education Expense Tax Credit program.

https://www.cato.org/blog/school-choice-just-peachy