Tu Quoque
Avoiding criticism by turning it back on the accuser, answering criticism with criticism.
Doesn't hypocrisy undermine the criticism?
The accuser’s hypocrisy is irrelevant to whether the original criticism is true. Two wrongs don’t validate either.
The blue candidate accused the red candidate of committing the tu quoque fallacy. The red candidate responded by accusing the blue candidate of the same, after which ensued an hour of back-and-forth criticism with not much progress.
Redressing the fallacy
Hypocrisy is undesirable, but the hypocrisy of others cannot justify one’s own questionable behaviour.