A spokesman for Ken Livingstone said: "Boris Johnson lost his temper because he lost the debate - he talked about cable cars, not cutting fares and the squeeze on Londoners."
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The 26-year-old said she was moving on to the "next big chapter" - which includes a new show about her venture into motherhood.
Patchy rain will affect many northern areas of the UK over the next 24 hours.
A tense Wembley play-off final between Reading and Huddersfield was settled on penalties.