Rishi Sunak faces another by-election challenge as former energy minister Chris Skidmore is poised to resign as an MP, after quitting the Tories over legislation to boost North Sea oil and gas drilling.Mr Skidmore, who led a Government review of net zero, announced on Friday he would stand down as he said the Prime Minister's environmental stance is "wrong and will cause future harm".

Rishi Sunak faces another by-election challenge as former energy minister Chris Skidmore is poised to resign as an MP, after quitting the Tories over legislation to boost North Sea oil and gas drilling.Mr Skidmore, who led a Government review of net zero, announced on Friday he would stand down as he said the Prime Minister's environmental stance is "wrong and will cause future harm".