Jesse Jackson Jr. files formal petition to divorce Sandi Jackson

CHICAGO (WLS) -- Former Congressman Jesse Jackson Jr. filed Monday a formal petition for divorce from his wife, former Chicago Alderman Sandi Jackson.

Jackson Jr. filed initial paperwork last July, to initiate divorce proceedings against her, while she was still in prison. In court records, Jackson cited "irreconcilable differences."

Since that time, there have been several additional filings, including a motion to dismiss. That motion was filed by Sandi Jackson after she was released from prison.

A hearing in the case was set for Jan. 4.

The former congressman served time in prison for fraud. The former alderman served time for filing a false tax return.

The Jacksons have two children.