Tories lose two key byelections on same night in Wakefield and Tiverton and Honiton

Labour takes Wakefield and Lib Dems snatch Tiverton and Honiton, piling pressure on Boris Johnson

• Oliver Dowden resigns as party chair
• Conservatives lose key byelections - live

Boris Johnson has faced a double hammer blow to his authority after the Conservatives lost the Wakefield and Tiverton and Honiton byelections on the same night, prompting the party co-chair Oliver Dowden to resign.

Labour took Wakefield, while the Liberal Democrats overturned a 24,000-plus majority to snatch Tiverton and Honiton.