Sadiq Khan: government 'abandoning passengers' on Southern rail

London mayor calls for rail unions to cancel strikes planned for next week as drivers’ overtime ban causes chaos for commutersThe London mayor has accused the government of “abandoning passengers” on Southern rail, on a morning when hundreds of thousands of commuters suffered fresh chaos as the impact of a train drivers’ overtime ban hit home.Sadiq Khan called on the rail unions to cancel strikes planned for next week but strongly criticised the government for “wash