Heidi Alexander quits MP role to be London Deputy Mayor

Heidi Alexander is standing down as a Lewisham MP in order to replace Val Shawcross as Mayor Khan's Deputy Mayor, responsible for transport across the capital.

I have lost enough Twitter followers by dwelling on the internal Labour party politics that contributed to this decision and there will be plenty of time to revisit that topic as the race to replace her begins in earnest, so let us focus on the positives.

Heidi Alexander is a capable politician who cares about our borough. Her appointment ought to ensure that the Bakerloo line extension to New Cross and Lewisham goes ahead without any hiccups. She might also encourage TfL to give greater consideration to cyclists in Lewisham, extending the bike hire docks to our borough.

Anyone in City Hall with an affinity for South East London's challenges and potential is good news.