Starmer was accused of siding with strikers as more than 20 Labour MPs joined picket lines, including former shadow frontbenchers John McDonnell, Richard Burgon and Ian Lavery.
Strikes on course to expand and escalate this year without compromises coastfm.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from coastfm.co.uk Daily Mail and Mail on Sunday newspapers.