 Proponents say more choice leads to more student success. Meanwhile, the push to expand voucher programs in some places has started to fund private schools with a Christian nationalist agenda, all with the political backing of billionaire donors. So here to untangle all of this with us, Josh Cowan. He's professor of education policy at Michigan State University. He's also the author of the upcoming book, The Privateers, How Billionaires Created a Culture War and Sold School Vouchers.