Sarah Palin Monday threatened to sue the author and publisher of the biography that asserts she used cocaine in the past, had a six-month affair with one of her husband's business partners and had a one-night stand with Glen Rice.

The Rogue: Searching for the Real Sarah Palin, written by Joe McGinniss, was published Sept. 20. It claimed that Palin had an affair with Brad Hanson, who was running a snowmobile dealership with her husband. Todd, her husband, soon discovered the affair and subsequently ended the business partnership.

The most sensational allegation the book made was that Palin and Glen Rice, the former Miami Heat basketball player, had a one-night stand. They met in 1987 when she was working as a sports reporter for KTUU television and he was playing in a college basketball tournament in Alaska.

A letter from Palin's lawyer said McGinniss and Crown Publishing faced possible legal action for defaming the 2008 Republican vice-presidential nominee. Palin's lawyer, John Tiemessen, is convinced that McGinniss didn't have time to find the factual evidence he needed to substantiate these claims.

Palin, then governor of Alaska, came into prominence when she was selected by John McCain to be the Republican vice presidential candidate in 2008.

She has been the center of speculation as a 2012 presidential candidate but has not declared her intentions.

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