President Donald Trump’s new executive order on regulating elections is striking for the way it asserts broad powers for the executive branch that go far beyond what’s prescribed in the Constitution or sanctioned by courts. Experts expect the order to face legal challenges for that reason. This article was originally published by Votebeat, a nonprofit news organization covering local election administration and voting access. But what’s also striking about the order is how it seeks to dictate some arcane details of the way voting systems work in some of America: Specifically, it bans the machine-readable barcodes or QR codes that...