Last Friday, she submitted her resignation to Mayor Rahm Emanuel.
Jackson had been alderman since 2007. In her resignation letter, Jackson said she could not adequately represent the 7th Ward while dealing with her husband Jesse Jackson Jr.'s bipolar disorder.
Her father-in-law, Rev. Jesse Jackson Sr. talked about the family on ABC7 Chicago's morning news broadcast.
"Right now, she's focused on her family. I've not talked with her since we had prayer with the family," said Rev. Jackson
Jesse Jackson Jr. resigned from Congress in November amid a campaign finance investigation.
The primary election to fill his second congressional district seat will be on February 26.
"He's had therapy every day, and he's in the throws of it all. So, a lot of pain. Please, please pray for our family," Rev. Jackson said. There has been no word on who Mayor Emanuel will appoint to replace Sandi Jackson in the Chicago City Council.