Bad publicity surrounding the UK Independent Party is having no affect, the party's deputy chairman told ITV News. Neil Hamilton said that it showed the "difference between ordinary, normal people in the country, and those in the 'Westminster bubble'".
Mr Hamilton added that claims surrounding Ukip candidate William Henwood would be investigated, and that if he made "false statements" over the reported racist remarks, he would be "turfed out".
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Mladic, now 75, was the military commander of Bosnian Serb forces in the 1990s, who fought against the Bosnian Croat and Bosniak armies.
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His representatives said Cassidy, who was hospitalised last week, died "surrounded by those he loved."