Mr Banks, 57, has a long track record as a member of the GLC, abolished by Margaret Thatcher, and as an MP since 1983. Asked how they would vote if he was the standard-bearer for Labour, the poll shows 39 per cent backing Mr Livingstone, 25 per cent for the Tory, expected to be former minister Steven Norris, and 15 per cent for Mr Banks, a whisker ahead of the likely Lib-Dem candidate, Susan Kramer.