The code will be posted to GitHub, and can be layered onto existing voting software for added integrity.

Election tech companies are telling the world they are fixing their cybersecurity issues. Will the changes they make satisfy everyone ahead of 2020?

Senators, including Amy Klobuchar, say every machine made by election technology companies should reliably produce paper records.

"Russia’s requests for source code reviews have increased," the senators wrote.

"I write to seek public answers about cybersecurity threats to our election infrastructure," the Oregon Democrat wrote.