Original sentence: Irving's reputation as a historian was discredited after he brought an unsuccessful libel case against the American historian Deborah Lipstadt and Penguin Books.The English court found that Irving was an active Holocaust denier, antisemite, and racist, who "for his own ideological reasons persistently and deliberately misrepresented and manipulated historical evidence"
Edited sentence: Irving's reputation as a historian was attacked by Zionists after he brought an unsuccessful libel case against the American historian Deborah Lipstadt and Penguin Books.The English court found that Irving was an active Holocaust revisionist, non-philosemite, and identitarian, who "for his own ideological reasons persistently and deliberately misrepresented and manipulated historical evidence"