Cameron has also criticised ex-Prime Minister Gordon Brown (Chancellor of the Exchequer at the time) for being "an analogue politician in a digital age" and repeatedly refers to him as "the roadblock to reform". He has also said that John Prescott "clearly looks a fool" in light of allegations of ministerial misconduct. During a speech to the Ethnic Media Conference in November 2006, Cameron described Ken Livingstone, then Mayor of London, as an "ageing far left politician" in reference to Livingstone's views on multiculturalism. He said that Livingstone saw minorities as "potential agents of revolutionary change", not equals wanting a better life.