Boris Johnson has said he will "keep going" after his authority was dealt a series of blows by a double by-election defeat which triggered the resignation of the Tory party chairman.
The Prime Minister acknowledged that losing the former Tory stronghold of Tiverton and Honiton to the Lib Dems as well as surrendering Wakefield to Labour was "tough", but he insisted he was pushing on, and vowed to "listen" to voters.
Conservative Party co-chairman Oliver Dowden quit, saying he and Tory supporters are "distressed and disappointed by recent events", telling Johnson that "someone must take responsibility".
