Tax specialist Nancy Sidebotham, 69, said she’s run for the Oakland City Council six times. She’s never won a seat. But, to her mind, she’s never lost either. “There’s not too many candidates that lose, and stay involved,” said Sidebotham, who’s lived in Oakland for more than 50 years, and served on the Community Policing Advisory Board, Neighborhood Watch and Shop Oakland boards, among other organizations. “I continue to stay involved and continue to work for my community.” The East Oakland…