A poll commissioned by school-choice group American Federation for Children suggested a tough road ahead for a group working on a ballot measure to repeal an expansion of vouchers.

Activists are attempting to repeal a trio of laws approved by the Legislature and signed by the governor this year. But pulling off a referendum, known colloquially as a “citizens’ veto,” isn’t easy.

A new public-education advocacy group seeking a referendum on a recently passed voucher law has plenty of confidence, but it is sorely lacking the sort of high-dollar support needed to fight until the end.