In response to the open letter, Mr Nadim wrote: “This is the power of the Zio lobby (even at [university] level)."
He said: "I am angry at the [Islamic societies] because they aren't half as organised and dedicated as the Union of Jewish Students.
"Isocs should be organising mass sit-ins, escalating the fight against Prevent, making the case for Palestine and so much more but they aren't really.”
He went on to warn “Zios” who reported his endorsement of Ms Bouattia: “You really should’t poke a tiger, you terrorist-sympathising p*****.”
In response to Mr Nadim's comments a Union of Jewish Students spokesperson said: "This proves why MPAC deserve their place on the NUS no platform list and should remain there.”
Ms Bouattia is standing against current NUS president Megan Dunn and De Montfort student Adil Waraich. The next president will be announced at the NUS conference in Brighton next week.
In response to the Jewish students' letter, Ms Bouattia said: “It seems I have been misrepresented. I am extremely uncomfortable with insinuations of antisemitism.
"To take issue with Zionist politics is not taking issue with being Jewish”.