In one of the most hotly-contested questions in modern Tennessee political history, the legislature narrowly approved a $430 million private-school voucher program that critics say will grow quickly to $1 billion and endanger the state’s budget.

The Education Department is being told to use discretionary money to prioritize school choice programs and give states new guidance on how they can use federal money to support K-12 voucher programs.

The executive order that he plans to sign Wednesday could free up some pockets of federal money to be used on school choice, but it is not clear how far he could move the needle with federal money alone.