Just to illustrate the nature of that campaign, at one point and in order to accuse Corbyn of being anti-semitic, they said that he had sat on a panel in a conference where one of the members of the same panel compared the actions of Israel to those of the Nazis, "hence" (by association) Corbyn was an anti-semite.

The thing is, said member of the panel who compared the actions of Israel to those of the Nazis was a Jewish Holocaust Survivor.

If such words made Corbyn an anti-semite by association then, having said such words, said panel member would even more so have to be an anti-semite.

In other words, the anti-Corbyn campaign was so rabid ragingly extremist and sleazy that they were accused a Jewish Holocaus Survivor of being an anti-semite in order to try to taint Corbyn by association.

PS: And, by the way, this very newspaper - The Guardian - was an active participant in that campaign and published this slander, amongst others.