tycoon harvey boulter has already given £ 30,000 to the ukip candidate fighting fox in his somerset seat in a continued vendetta against him .
boulter is also spending another £ 30,000 to try to defeat tom tugendhat , who is standing for the tories in tonbridge and west malling , kent .
' a tory party spokesman last night declined to comment .
fox resigned from the cabinet in 2011 after boulter revealed details of how fox 's close friend , businessman adam werritty , accompanied him on overseas trips as defence secretary that