Controversial MP George Galloway has been banned from speaking at De Montfort University.
The Respect MP, whose views on the Iraq war resulted in his expulsion from the Labour party in 2003, was scheduled to deliver a speech at the university on November 14.
However, he has now been told to stay away by its Student Union executive.
The executive say legal issues between Galloway and the National Union of Students (NUS), mean his visit is now deemed "inappropriate."
Joseph Hayat, 19, chairman of DMU's Respect Society, organised the event.
He said he has been left "infuriated" by the decision and intends to find an alternative venue so Mr Galloway's speech can still go ahead.
Mr Hayat said: "It's completely undemocratic and preposterous. Oxford University hosted Mr Galloway recently.
"Why should students there get to listen to him speak, and not those at DMU? The situation with the NUS was no different then and, ironically, Mr Galloway was intending to speak about the importance of more young people getting into politics, regardless of their political persuasion."
He is now looking for alternative venues, not affiliated to the university, to host the event.
Mr Galloway, MP for Bradford West, is suing the NUS for libel following criticism of his remarks about WikiLeaks founder Julian Assange.
The NUS branded Mr Galloway's comments "offensive" and said they would no longer share a platform with the MP.
DMU Student Union president Lynette Williams, said: "All external speakers are checked for health and safety reasons and De Montfort Students' Union was asked if George Galloway was a suitable external speaker for one of our society's events.
"While discussing this application, it came to light that Mr Galloway had declared he was going to sue the NUS, who we are affiliated with. NUS represents every student in the country and, in our opinion, an attack on the NUS is an attack on every student, including those at De Montfort University.
"We feel it would be inappropriate for Mr Galloway to attend an event on campus while in a legal altercation with our affiliate national movement."
A spokesman for DMU added: "The university fully supports the decision and believes the sanction taken is in the best interests of the Students' Union."
A spokesman for George Galloway said yesterday: "He is absolutely appalled, but not surprised that the Student Union should do this.
"It's a gross infringement of freedom of speech and he is sure that it's not representative of the majority of the student body.''
