Attacks on the U.S. election system and those around the world are designed to sow doubt and undermine confidence, creating challenges for democracies around the world. Adam Isles and Michael Chertoff discuss how we protect the integrity of elections – from campaigns, voters, and the voting system itself. It requires a public-private partnership, and individual citizens have a role to play. Chertoff cautions that we must use our imagination to prepare for the attacks we haven’t seen.