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Senator's affair replayed in new movie

An insider's account of two-time US presidential candidate John Edwards' affair and the lengths he went to hide his mistress will be developed into a film.

Andrew Young said he reached a deal with West Wing writer and producer Aaron Sorkin. He declined to discuss the terms of the agreement, but Sorkin confirmed he acquired the rights to Young's book, The Politician.

"This is a first-hand account of an extraordinary story filled with motivations, decisions and consequences that would have lit Shakespeare up," Sorkin said in a statement.

"There's much more to Andrew's book than what has been reported and I'm grateful that he's trusting me with it."

The book detailed how he helped hide Mr Edwards' mistress during the candidate's second campaign for the White House.

Sorkin was the writer of the play A Few Good Men and the television series The West Wing.

"He was the perfect one to write this," Mr Young said. "I was really impressed by him, how he was focused on the tragedy rather than the tawdry."

In the aftermath of the 2008 presidential campaign, Mr Edwards admitted he fathered a child with Rielle Hunter. The former North Carolina senator and his wife are now separated.

Ms Hunter is locked in a legal battle with Mr Young over a sex tape that Mr Young said shows the presidential candidate.

Mr Young contends that he found the tape in a box of rubbish that she left behind while Ms Hunter argues that the tape was with her personal property.