A Republican congressman accused of abusing his ex-mistress agreed to pay her about $500,000 in a settlement last year that contained a powerful incentive for her to keep quiet until after Election Day, a person familiar with the terms of the deal told The Associated Press. Rep. Don Sherwood is locked in a tight re-election race against a Democratic opponent who has seized on the four-term congressman's relationship with the woman. While Sherwood acknowledged the woman was his mistress, he denied abusing her and said that he had settled her $5.5 million lawsuit on confidential terms.

link to AP story.