Supporters of expanding school vouchers in Tennessee argue that the program does not take away from families who want their children to remain in public schools as they once again asked a state court to dismiss the ongoing lawsuit challenging the statute’s legality. The hearing held on Monday, was the latest development in the years-long legal battle over the contentious voucher program, known as education savings accounts. Under the law, eligible families are given around $8,100 in public tax dollars to help pay for private schooling tuition and other preapproved expense.