Key facts about Labour's new leader

Britain's opposition Labour Party chose former energy secretary Ed Miliband as its new leader today as he beat his brother David…

Britain's opposition Labour Party chose former energy secretary Ed Miliband as its new leader today as he beat his brother David in a cliffhanger vote.

Here are some key facts about Ed Miliband:

- Mr Miliband took on his more experienced older brother David, the former foreign secretary, and three other candidates for the leadership of the Labour Party. David initially was the strong favourite but Ed's campaign gradually built up steam.

- Right-wing newspapers have dubbed him "Red Ed" because of his backing from trades unions and appeal to Labour's core vote.

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- Supporters say Ed, who wrote Labour's 2010 election manifesto, has a more relaxed presentational style than his brother that makes him better equipped to counter Conservative prime minister David Cameron.

- Born in December 1969, the son of Jewish immigrants, he studied at Oxford University and the London School of Economics, and is seen as one of the party's rising stars.

- Before becoming a member of parliament, Mr Miliband chaired the Treasury's council of economic advisers and then served as an adviser to then finance minister Gordon Brown.

- Elected the Labour MP for the northern English seat of Doncaster North in May 2005, he is less well known among the British public than his brother but support from the trade unions, Labour's biggest financial backers, helped him to secure the party leadership.