The challenger to Sir Keir Starmer's leadership made a series of expensive commitments during his by-election campaign - but is yet to set out how he will fund them.

Andy Burnham secured a majority of 9,000 votes over Reform in a result that sparked tears of joy from Left-wingers - who now hope to force far more extreme tax and spend policies.

Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.AllNewsSportCultureLifestyleAndy Burnham secured a decisive victory in…