From The BBC News

Ralph Nader has announced plans to run again for the US presidency.

The anti-establishment consumer advocate made the announcement in a televised interview on Sunday.

Mr Nader was accused by many Democrats of handing the presidency to George W Bush in the November 2000 elections. He ran again unsuccessfully in 2004.

Senators Barack Obama and Hillary Clinton are vying for the Democratic ticket. John McCain is almost certain to run for the Republicans.

Nearly three million Americans - more than 2% of the vote - backed him when he stood as the Green Party candidate in the 2000 presidential election.

That election was so close that a small proportion of those votes - particularly in the key state of Florida - would have put Al Gore in the White House.

Mr Nader was born in Connecticut in 1934 and was educated at Princeton and Harvard universities.

He has spent most of his life fighting for consumers and workers against corporations.

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