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In the most egregious examples, CBS’ “60 Minutes” found that Rep. Grace Napolitano, D-Calif., lent her PAC $150,000 – and made $228,000 over a 12-year period by charging 18 percent interest.

Napolitano admitted to doing it, and an ethics watchdog said the practice is technically legal. In fact, the group Citizens for Responsibility and Ethics in Washington found at least 15 cases where politicians were making loans to their campaign funds.

The report found other questionable examples.

CBS reported that Sen. Saxby Chambliss, R-Ga., spent more than $100,000 entertaining at world-class golf courses, and Rep. Gregory Meeks, D-N.Y., spent $35,000 on NFL games.

Rep. Rob Andrews, D-N.J., reportedly used $16,000 from his account to bring his family to Scotland for a friend’s wedding, supposedly under the pretense of considering hiring the friend as a consultant.