//Trump says voting by mail isn’t reliable. What does the evidence show?

Trump says voting by mail isn’t reliable. What does the evidence show?

President Trump’s refusal to commit to a peaceful transition of power is tied to his criticism and false statements about voting by mail, which is expected to reach record levels in this election. Trump insists it can’t be trusted — but many state and local election officials disagree. Miles O’Brien reports on how voting by mail works — and what past experience indicates about its reliability.