Texas taxpayers face a $100 million bill to update voting machines with equipment that doesn’t exist yet

When state lawmakers passed a sweeping and controversial new election law in 2021, they quietly included a provision that drew little notice or debate.

But election administration experts say the measure is unprecedented, it mandates the purchase of voting technology that doesn’t currently exist — and it’s on the verge of costing taxpayers more than $100 million.

Sponsors of the provision said they aimed to prevent cheating in elections by prohibiting the use of modern technology to count votes and store cast-ballot data. It passed without debate on a voice...