Carol Vorderman has sent a message to Boris Johnson after the Tories suffered humiliation at the by-election .
The Conservatives were hit by a double blow as they crashed to two defeats at the polls. Labour reclaimed a seat in the red wall constituency of Wakefield and the Liberal Democrats triumphed in the Devon seat of Tiverton and Honiton, which was considered a Conservative stronghold.
The results have prompted the Prime Minister's close ally, Oliver Dowden, to quit. The Tory MP claimed in his resignation letter that someone must take responsibility for a recent run of poor results.
