Al Sanchez was the head of Chicago's streets and sanitation department and Isaac Carothers is an ex-alderman. Both are running for the board, even though they were convicted of corruption. While felons can't run for city offices, they can run for county and state positions.
Sanchez, who was released from prison five months ago, is running for a seat once held by William Beavers, who's currently serving a six-month sentence for tax evasion. Carothers is running for a vacant seat.