The revelation that Nigel Farage and George Galloway are to work together on the European Union referendum has been mercilessly mocked, with the unlikely pact described as an "unholy alliance". The Ukip and Respect party leaders appeared together at a rally for the Grassroots Out campaign on Friday, launching the campaign to persuade voters to end Britain's membership of the EU. Yet instead of being welcomed, Galloway's appearance prompted a mass walkout at the event, and the party leaders' partnership is now the subject of intense scrutiny - and mockery.