Voters punish politicians for misinformation that portrays them in a favourable light, but not for inaccurate information that attacks their opponents.

What impact does inaccurate information have on political campaigning? Outlining the results of three studies on the role of misinformation in politics, Michael D. Cobb finds that voters react to positive and negative information in very different ways. While negative misinformation, such as using false figures to attack a political opponent, tends to linger in the minds of voters even after it is retracted; there is no such effect when positive information about a politician is debunked. Indeed, voters appear to actively punish politicians in the aftermath of positive misinformation.