Raising the congestion charge won't necessarily make a difference. Rather than increasing the amount you pay in congestion charge, we should be thinking about an ultra low emission zone. We should penalise those cars who are the biggest polluters and reward cars that don't, like electric cars.

Britain cannot compete with China or Taiwan on price; we compete on skills, on arts and culture.

London has always been open to trade, people, ideas. We have to keep that. I want to compete not just with New York, Paris, Berlin... the ten fastest growing cities in the world are in China. How do we compete with them? We have to attract investment and we have to compete on skills.

You cannot live in the best city in the world and have people living on the streets.

How is it having more control if you have less money in your pocket as Martin Lewis Moneysaving expert says?

I believe in neighbourhood policing. We also need to look at young people being radicalised.

I am the only candidate for mayor of London with the experience of being a transport minister.