Blagojevich Under Pressure From Ill. Attorney General Madigan

In the midst of it all, the state headed toward an extraordinary constitutional showdown. Attorney General Lisa Madigan asked the Supreme Court to declare Blagojevich unfit to serve, likening his corruption scandal to a debilitating illness as she ramped up pressure on the governor to resign. The move seeks to hand power over to the lieutenant governor.

"I recognize that this is an extraordinary request, but these are extraordinary circumstances," Madigan said.

It is the first time in Illinois history that such an action was taken. The attorney general is applying a rule that was intended to cover cases in which a governor is incapacitated for health reasons.

The fallout over the scandal resumed Friday as John Harris, the governor's chief of staff, resigned. He was arrested with his boss on corruption charges. Harris attorney Jim Sotos said his client resigned "because it was the right thing to do, and that's all I'm going to say."

The taint of the scandal followed Rep. Jesse Jackson Jr. for a third straight day. A report in the Chicago Tribune said businessmen with ties to the governor and the congressmen discussed raising $1 million for Blagojevich to get him to appoint Jackson to Obama's seat.

Jackson flatly denied any wrongdoing. "It is unfortunate that every appearance the governor makes and meeting he has taints everyone in attendance," Jackson said.

In Washington, people who have been briefed on the Illinois governor corruption investigation said Obama chief of staff Rahm Emanuel is not a target of the probe.

Emanuel has refused to answer questions about whether he's the "president-elect adviser" referred to in the criminal complaint that accuses Blagojevich of putting Obama's Senate seat up for sale. The complaint does not say that Blagojevich ever spoke to the unidentified Obama adviser about the Senate seat.