Election Systems & Software has championed electronic voting machines in the US. Now it has had a change of heart about the need for paper records of votes. From a report: TechCrunch understands the decision was made around the time that four senior Democratic lawmakers demanded to know why ES&S, and two other major voting machine makers, were still selling decade-old machines known to contain security flaws. ES&S chief executive Tom Burt’s op-ed said voting machines “must have physical paper records of votes” to prevent mistakes or tampering that could lead to improperly cast votes. Sen. Ron Wyden introduced a bill a year ago that would mandate voter-verified paper ballots for all election machines. The chief executive also called on Congress to pass legislation mandating a stronger election machine testing program. Burt’s remarks are a sharp turnaround from the company’s position just a year ago, in which the election systems maker drew ire from the security community for denouncing vulnerabilities found by hackers at the annual Defcon conference.