Fiona Twycross AM: Can you tell me how many of the 3 million families whom the Institute for Fiscal Studies (IFS) has said will be hit by this change live in London?
Boris Johnson MP (Mayor of London): I cannot give you that.
Jennette Arnold OBE AM (Chair): You should know.
Boris Johnson MP (Mayor of London): I would be happy to write to you with the details. I do not have that figure off the top of my head.
Fiona Twycross AM: If you could establish it? Obviously, we know that previous changes to welfare disproportionately hit Londoners and about half of those affected lived in London.