Arizona Attorney General Kris Mayes said Sunday that she planned to sue state Superintendent Tom Horne after an investigation revealed that millions of dollars in funding for the state’s school voucher program were misused.

Horne has been defiant of Mayes’s order to change spending with Empowerment Scholarship Accounts, or state school vouchers. An investigative report from 12News found $124 million in purchases under the taxpayer-funded school voucher program received blanket approvals, and many luxury purchases were made, including diamond rings, cellphones, vacations, and clothing.