With the U.S. set to hold its first mostly mail-in election in November, the pandemic-prompted move may solve a public health issue but trigger problems that will reverberate long after Election Day.
With tens of millions of Americans expected to mail in their ballots for the Nov. 3 general election, amid a tangle of state laws, the country may not know whether President Donald Trump or Joe Biden won for days or even weeks.
During those weeks, there will likely be charges of cheating, lawsuits and demands for recounts in a country that prides itself on open, fair and efficient elections.