Mayor Daley On Wife Maggie's Cancer Battle: 'She's A Fighter' (VIDEO)

Mayor Daley said his wife, Maggie, is "doing very well" after undergoing a bone biopsy Wednesday as part of her ongoing breast cancer treatment.

"Maggie's done a tremendous job," Daley said Thursday. "She's a fighter."

As Daley started to get emotional while discussing his wife's breast cancer battle, mayoral press secretary Jacquelyn Heard changed the focus of the press conference in what the Sun-Times' Fran Spielman called "an apparent attempt to protect her boss from choking up."