There are 17 candidates vying to replace the former prime minister as the MP for Uxbridge and South Ruislip - from those representing the main parties, to well-known outsiders like Laurence Fox and Piers Corbyn.
Uxbridge Tory candidate fears it will be challenging to win by-election aol.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from aol.co.uk Daily Mail and Mail on Sunday newspapers.