Former Illinois Governor Rod Blagojevich is set to go on trial on charges of corruption, including attempting to sell President Barack Obama’s vacant Senate seat.
Mr Blagojevich has denied all 24 charges which include racketeering, wire fraud, attempted extortion and bribery.
He was arrested 18 months ago along with his brother and co-defendant, Robert Blagojevich.
The trial begins with jury selection.
Mr Blagojevich, who intends to take the witness stand, wants the court to hear 500 hours of taped phone conversations to prove his innocence.