Jean-Claude Juncker denied being a federalist after being elected as European Commission President.
Mr Juncker told ITV News Political Correspondent Carl Dinnen that he did not want a "United States of Europe". He added: "I will negotiate with David Cameron and others, and will make a fair deal with him".
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After the heatwave come the storms, with lightning flashes illuminating the night sky across much of the country last night.
An Independence Day event at a UK base has been cancelled by the US Air Force over security fears.
British firms predict the economy should sustain a "solid" pace of growth for the rest of the year thanks to lower oil prices and inflation.