Lord Hill, David Cameron's nominee as Britain's new European Commissioner, said he would have been "mad" not to accept the Prime Minister's offer.
Asked whether he was a eurosceptic, the former lobbyist said he was "not one for names or badges or boxes" but that he wanted to reform Europe to make it stronger and serve citizens better.
Mr Cameron is in Brussels tonight in a bid to secure one of the key economic portfolios in the European Commission for Britain.
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The official Brexit campaign "cheated" during the European Union referendum to get around spending limits, a whistleblower has claimed.
A cloudy and damp start for many southeastern areas, but turning brighter through the afternoon.
Countries have been switching off their lights for Earth Hour, a global call for international unity on the importance of climate change.