President Donald Trump’s executive order seeking to overhaul how U.S. elections are run includes a somewhat obscure reference to the way votes are counted. Voting equipment, it says, should not use ballots that include “a barcode or quick-response code.” Those few technical words could have a big impact. Voting machines that give all voters a ballot with one of those codes are used in hundreds of counties across 19 states. Three of them — Georgia, South Carolina and Delaware — use the machines statewide. Some computer scientists, Democrats and left-leaning election activists have raised concerns about their use, but those pushing conspiracy theories about the 2020 presidential election have been the loudest, claiming without evidence that manipulation has already occurred.
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