‘Big test’ for PM as ex-Labour MP steps down to trigger by-election

‘Big test’ for PM as ex-Labour MP Mike Amesbury steps down to trigger by-election

A by-election will be triggered in the seat of Runcorn and Helsby, in what Sky News' political correspondent Liz Bates said would be a "big test" for Sir Keir Starmer given the threat from Nigel Farage's Reform UK.