campagna diffamatoria

listen to the pronunciation of campagna diffamatoria
الإيطالي - الإنجليزية
smear campaign
An effort to damage or call into question someone's reputation, by propounding negative propaganda

His opponent said it was all a smear campaign to make him look bad in the eyes of the voters.

a deliberate plan to tell untrue stories about an important person in order to make people lose respect for them - used especially in newspapers
mud slinging campaign, attempt to destroy someone's reputation, malicious defamation