As part of the US election's dirty tricks, an anti-Barack Obama documentary that claims the President's mother once posed for pornographic photos wearing bondage gear is being sent to millions of voters in swing states. The shocking claims made in the DVD have provoked fury among Democrats.

'Dreams From My Real Father', made by a right-wing film-maker,  includes images of a woman it claims is the President's mother Ann Dunham clad in leather gloves, boots and a corset posing almost nude on a couch.

The film also alleges that Obama's real father is left wing poet and Communist party activist Frank Marshall Davis, and that Dunham's marriage was a 'sham' to cover this up.

'Dreams From My Real Father' claims that the President's family history is an elaborate lie.

The real story is that his mother's marriage to Barack Obama Sr was a sham to cover up her affair with Davis, who Obama has referred to as his 'mentor'. Davis supposedly photographed Dunham while she was pregnant with Obama'.