Now, to dramatic, new developments for illinois congressman jesse jackson jr. He's been out of sight for months, undergoing treatment for bipolar d bipolar disorder. Now, there's another fight for the... See More
Now, to dramatic, new developments for illinois congressman jesse jackson jr. He's been out of sight for months, undergoing treatment for bipolar d bipolar disorder. Now, there's another fight for the congressman, fighting ethics investigations by the federal government. Pierre thomas has the latest from washington. Good morning, pierre. Reporter: Good morning, elizabeth. Congressman jesse jackson jr. Has been fighting to regain his mental health and return to public life. But this morning, he appears to be in a fight to stay out of jail. Reporter: The son of civil rights icon jesse jackson was easily re-elected tuesday, with more than 60% of the vote. Even though he dropped off the political scene months ago, to deal with bipolar depression. We're learning that congressman sse jackson jr. Of illinois has been re-elected. Reporter: But jackson has been the subject of multiple fbi investigations, involving allegations of misuse of campaign funds and influence peddling. Sources with the probe say he's now negotiating a possible guilty plea. The pressure is overwhelming when the fbi steps to you, particularly in a public corruption case because they're going to have a lot of evidence. Reporter: Investigators have been examining whether jackson used campaign funds to adorn his beautiful home in washington, d.C. Recently on the market for $2.5 million. And there's allegations that jackson bought a female friend a $40,000 rolex. And the justice department has been investigating whether jackson was somehow involved in former governor rod blagojevich's 2008 scheme to pedal the senate seat of barack obama. Jackson has been seeking help at the mayo clinic in minnesota. He's missed 225 votes since. The fact is, congressman is under medical supervision. And is right now, regaining strength. Reporter: He did no campaigning to speak of. Releasing this october 20th robocall to constituents. Your patience, your prayers and your support durinhis difficult time means more to me than you will ever know. Reporter: In that video, jackson never even asked constituents to vote for him. His staff declined to comment. His lawyer did not return our calls. Pierre, thanks.
This transcript has been automatically generated and may not be 100% accurate.