How 2020 candidates are grappling with online disinformation

How 2020 candidates are grappling with online disinformation

JUDY WOODRUFF: As the 2020 campaign heats up, candidates are facing an historic challenge, an unprecedented scale and variety of disinformation online. John Yang has that story. Hey, folks. JOHN YANG: The latest example? This selectively edited 19-second viral video of former Vice President Joe …