"It's a very normal and useful democracy service," said Liia Hanni, program director at Estonia's eGovernance Academy, a nonprofit organization that has advised some 20 governments around the world on technology.
Estonia showcases way to fix long voting lines →
"But naturally they are there," she added. "Initiating Internet voting is a complex project. You need to build trust, solve constitutional issues and the secrecy of voting — it's not an easy task."