Voters on the streets of Honiton - part of the Tiverton and Honiton by-election - have told how they are preparing to ditch the Tories.
The ballot is one of two polls on June 23 which Tory insiders fear could plunge Boris Johnson's Partygate-impaled premiership into deeper peril, if he survives that long.
The Lib Dem candidate, a former soldier bidding to eliminate Boris Johnson from the political battlefield, said losing a crunch by-election could topple the Prime Minister.