mudslinger

n.

（尤指政界人士对政敌的）诽谤，中伤；

Mudslinger?
Obama: Mudslinger-In-Chief
Mississippi mudslinger
You Mudslinger ; Hammers Hit out at Tevez Agent in Bitter Row over 'Broken Promises'
Muckrakers And the Mudslinger; Should Media Treat Floyd Brown Seriously?
IRA MUDSLINGER; -McGuinness Denies Claims He Is New Provo Chief -They Are Part of Attempts to Oust Me, He Says
Lugar Unleashes Attack Ads Campaign Venom Spews as Mourdock Called 'Mudslinger'
Conflict of interest? A Missouri mudslinger shares his views on the benefits of hiring separate vs. combined EIFS inspectors/repair ...