According to The Washington Post:
The Illinois House voted to impeach Governor Blagojevich, an unprecedented step in state history.
The action sets the stage for a Senate trial on whether he should removed from office for corruption and abuse of power.
The House voted 114 to 1 to impeach the governor a day after a special committee recommended impeachment following hearings on a variety of allegations, including federal corruption charges that led to his arrest last month. Among other alleged offenses, Blagojevich was accused in an FBI affidavit of conspiring to sell President-elect Barack Obama's U.S. Senate seat to the highest bidder.
The impeachment trial in the Illinois Senate is expected to begin in late January.