mudslinger

/ˈmʌdˌslɪŋər/
noun
  1. A person who makes insulting or damaging accusations against an opponent, especially in politics.
    • The candidate called his rival a mudslinger after the negative ads aired.
    • She refused to become a mudslinger, sticking to the issues instead of personal attacks.
    • The debate turned ugly when one mudslinger brought up old rumors.
Antonyms
What does "mudslinger" mean? | whatsthatwordmean | whatsthatwordmean