Washington (CNN) The House Ethics Committee has extended its investigation into whether Tennessee Republican Rep. John J. Duncan Jr. misused $100,000 from campaign and leadership PAC funds on personal expenses -- including baby showers and wedding showers at a country club -- as detailed in a new report made public Wednesday.

The 57-page report from the Office of Congressional Ethics, a nonpartisan ethics entity, recommended that the committee conduct further review of Duncan and his family's use of campaign funds for their own vacations and expenses.

Duncan, the longest-serving Tennessean in Congress, announced last year he will not seek reelection for his seat.

Duncan denied the accusations, saying in a statement that he has "never personally taken one penny out of my campaign account for personal or family expenses."

"The staffer for the OCE prepared a report on my campaign spending that is so false and misleading that it is almost ludicrous," his statement added. "She has made a ridiculous accusation that I 'may' have converted a very large amount of money to my personal use when practically all of it was spent buying meals for campaign workers, supporters, contributors, and constituents, many of whom I did not even know."

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