The San Jose Mercury News ( http://bit.ly/YeaFsM) says Board President George Shirakawa posted an email this week on his county Web page. In it, Shirakawa says he's embarrassed by the mistakes.
The newspaper says Shirakawa has repaid some $5,000 of the charges he made on his county-issued credit card since taking office in 2009.
The district attorney's office has questioned use of the card for car rentals, hotel stays and golf games.
Information from: San Jose (Calif.) Mercury News, http://www.mercurynews.com