SPRINGFIELD, Ill. - In an unprecedented move, the Illinois attorney general asked the state's highest court Friday to strip scandal-plagued Gov. Rod Blagojevich of his powers.

Lisa Madigan took the action as pressure on the governor to step down intensified, and legislators considered impeachment.

The fallout over the scandal continued Friday as the governor's chief of staff resigned. John Harris had been arrested along with the governor on Tuesday.

Madigan said that she took the action with the Illinois Supreme Court because she thinks that this is a faster way to strip Blagojevich of his power than through impeachment, which could take several weeks.

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

It was not immediately clear when the Supreme Court might take up the matter. The justices also have the discretion to deny the attorney general's request.

The move came as the governor prayed with several ministers in his home before heading to his office, telling them he is innocent and will be vindicated "when you hear each chapter completely written," according to one of the pastors.

The attorney general asked the court for a temporary restraining order or an injunction that prevents Blagojevich from serving as governor. The filing says he is "unable to serve as governor due to disability and should not rightfully continue to hold that office."

"The pervasive nature and severity of these pending charges disable Mr. Blagojevich from making effective decisions on critical, time-sensitive issues," the filing said.

The filing asks that the lieutenant-governor assume Blagojevich's powers.

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 where a governor is incapacitated for health reasons. Her motion indicates that his inability to serve because of the scandal is akin to a debilitating health issue.

"His ability to provide effective leadership has been eliminated and the state government is paralyzed," she said.

Just hours after Madigan's news conference, Blagojevich defiantly ignored the pressure to step down and signed a bill that would give insurance coverage to parents of children with autism.

The motion came three days after Blagojevich was accused of putting president-elect Barack Obama's Senate seat up for sale and shaking down the owners of the Chicago Tribune newspaper.

The decision to go to the state's highest court was not welcomed by everyone. Democratic Rep. Jack Franks said it would set "a dangerous precedent" for the court to remove a governor as Madigan proposes.

Franks, a fierce Blagojevich critic, said that kind of decision should be left to the General Assembly. "That's our job, and we should be doing it," he said.

The governor has been alternately holed up in his home or his downtown Chicago office since his arrest on federal corruption charges. He met with the clergymen Friday morning.

Rev. Ira Acree of the Greater St. John Bible Church said Blagojevich would not discuss details of the allegations against him.

He said the governor discussed trying to get a legal and political consultation team in place, but feels as if everything is closing in on him and that he's not getting "any space or chance to sort anything out."

Acree and two other pastors -- Rev. Steve Jones, president of the Baptist Pastor's Conference, and Rev. Marshall Hatch of the New Mt. Pilgrim Missionary Baptist Church -- arrived at the governor's home shortly after 8 a.m. and met with him for about 20 minutes.

Jones said they prayed with Blagojevich and his family.

"I look at it like this: Everybody that's hurting needs hope and the family needs hope and that's what our jobs are as pastors," Jones said. "Nobody should be left hopeless. Nobody, no matter what the circumstances."

Shortly after they left, a fourth minister, Rev. Leonard Barr of Fellowship Missionary Baptist Church, arrived at the governor's house with his wife, Rita.

He said they were invited by the governor and that the two "prayed that he would continue to be a great governor for the state of Illinois."

Meanwhile, calls for the governor to step down are intensifying. Lt.-Gov. Pat Quinn has joined a group of legislators in demanding that Blagojevich be impeached, saying he has become an embarrassment to the state and can no longer lead.

Blagojevich's approval rating has plummeted to a shockingly low eight per cent.

"When you have no confidence from the people, in a democracy there's nowhere else to go but to resign," Quinn said Thursday.