character assassination
Synonym discussion
Sense: noun/1
'Character assassination' is stronger than 'smear campaign' and usually focuses on ruining how the public sees one person, especially by making them seem dishonest or immoral. A 'smear campaign' is often broader and more organized, using ads, rumors, or repeated talking points over time. 'Mudslinging' is more informal and often suggests that both sides in a political fight are throwing personal insults. 'Slander' is broader and more legal, because it means making false damaging spoken statements whether or not there is a public campaign. A 'hatchet job' is informal and often refers to a savage article, review, or interview. If a TV ad tries to destroy a candidate's public image, 'character assassination' is the clearest choice.
Etymology
First known use
1822
1822, in the meaning defined above